cwinfo/matterbridge
5
0
Fork 0
mirror of https://github.com/cwinfo/matterbridge.git synced 2024-11-09 23:40:27 +00:00
Code Releases Activity

Update tengo vendor and load the stdlib. Fixes #789 (#792)

Browse Source
This commit is contained in:
Wim 2019-04-06 22:18:25 +02:00 committed by GitHub
parent cdf33e5748
commit 115d20373c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
63 changed files with 7020 additions and 1304 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gateway/gateway.go
View File

@ -10,6 +10,7 @@ import (
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
"github.com/d5/tengo/script"
"github.com/d5/tengo/stdlib"
lru "github.com/hashicorp/golang-lru"
"github.com/peterhellberg/emojilib"
"github.com/sirupsen/logrus"
@ -503,6 +504,7 @@ func modifyMessageTengo(filename string, msg *config.Message) error {
return err
}
s := script.New(res)
s.SetImports(stdlib.GetModuleMap(stdlib.AllModuleNames()...))
_ = s.Add("msgText", msg.Text)
_ = s.Add("msgUsername", msg.Username)
_ = s.Add("msgAccount", msg.Account)

2
go.mod
View File

@ -7,7 +7,7 @@ require (
github.com/Jeffail/gabs v1.1.1 // indirect
github.com/Philipp15b/go-steam v1.0.1-0.20180818081528-681bd9573329
github.com/bwmarrin/discordgo v0.19.0
github.com/d5/tengo v1.12.1
github.com/d5/tengo v1.20.0
github.com/dfordsoft/golib v0.0.0-20180902042739-76ee6ab99bec
github.com/fsnotify/fsnotify v1.4.7
github.com/go-telegram-bot-api/telegram-bot-api v4.6.5-0.20181225215658-ec221ba9ea45+incompatible

4
go.sum
View File

@ -15,8 +15,8 @@ github.com/bwmarrin/discordgo v0.19.0/go.mod h1:O9S4p+ofTFwB02em7jkpkV8M3R0/PUVO
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/d5/tengo v1.12.1 h1:libKkDM95CsZgYs6E5eiEaM9sbcw2EzJRSkr9o5NO4s=
github.com/d5/tengo v1.12.1/go.mod h1:gsbjo7lBXzBIWBd6NQp1lRKqqiDDANqBOyhW8rTlFsY=
github.com/d5/tengo v1.20.0 h1:lFmktzEGR6khlZu2MHUWJ5oDWS4l3jNRV/OhclZgcYc=
github.com/d5/tengo v1.20.0/go.mod h1:gsbjo7lBXzBIWBd6NQp1lRKqqiDDANqBOyhW8rTlFsY=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=

5
vendor/github.com/d5/tengo/Makefile generated vendored
View File

@ -1,10 +1,13 @@
vet:
go vet ./...
generate:
go generate ./...
lint:
golint -set_exit_status ./...
test: vet lint
test: generate vet lint
go test -race -cover ./...
fmt:

32
vendor/github.com/d5/tengo/README.md generated vendored
View File

@ -7,7 +7,6 @@
[![GoDoc](https://godoc.org/github.com/d5/tengo?status.svg)](https://godoc.org/github.com/d5/tengo/script)
[![Go Report Card](https://goreportcard.com/badge/github.com/d5/tengo)](https://goreportcard.com/report/github.com/d5/tengo)
[![Build Status](https://travis-ci.org/d5/tengo.svg?branch=master)](https://travis-ci.org/d5/tengo)
[![](https://img.shields.io/badge/Support%20Tengo-%241-brightgreen.svg)](https://www.patreon.com/tengolang)
**Tengo is a small, dynamic, fast, secure script language for Go.**
@ -16,6 +15,8 @@ Tengo is **[fast](#benchmark)** and secure because it's compiled/executed as byt
```golang
/* The Tengo Language */
fmt := import("fmt")
each := func(seq, fn) {
for x in seq { fn(x) }
}
@ -25,11 +26,11 @@ sum := func(init, seq) {
return init
}
n := sum(0, [1, 2, 3]) // == 6
s := sum("", [1, 2, 3]) // == "123"
fmt.println(sum(0, [1, 2, 3])) // "6"
fmt.println(sum("", [1, 2, 3])) // "123"
```
> Run this code in the [Playground](https://tengolang.com/?s=d01cf9ed81daba939e26618530eb171f7397d9c9)
> Run this code in the [Playground](https://tengolang.com/?s=0c8d5d0d88f2795a7093d7f35ae12c3afa17bea3)
## Features
@ -41,22 +42,23 @@ s := sum("", [1, 2, 3]) // == "123"
- [Securely Embeddable](https://github.com/d5/tengo/blob/master/docs/interoperability.md) and [Extensible](https://github.com/d5/tengo/blob/master/docs/objects.md)
- Compiler/runtime written in native Go _(no external deps or cgo)_
- Executable as a [standalone](https://github.com/d5/tengo/blob/master/docs/tengo-cli.md) language / REPL
- Use cases: rules engine, [state machine](https://github.com/d5/go-fsm), [gaming](https://github.com/d5/pbr), data pipeline, [transpiler](https://github.com/d5/tengo2lua)
## Benchmark
| | fib(35) | fibt(35) | Type |
| :--- | ---: | ---: | :---: |
| Go | `58ms` | `4ms` | Go (native) |
| [**Tengo**](https://github.com/d5/tengo) | `4,180ms` | `5ms` | VM on Go |
| Lua | `1,695ms` | `3ms` | Lua (native) |
| [go-lua](https://github.com/Shopify/go-lua) | `5,163ms` | `5ms` | Lua VM on Go |
| [GopherLua](https://github.com/yuin/gopher-lua) | `5,525ms` | `5ms` | Lua VM on Go |
| Python | `3,097ms` | `27ms` | Python (native) |
| [starlark-go](https://github.com/google/starlark-go) | `15,307ms` | `5ms` | Python-like Interpreter on Go |
| [gpython](https://github.com/go-python/gpython) | `17,656ms` | `5ms` | Python Interpreter on Go |
| [goja](https://github.com/dop251/goja) | `6,876ms` | `5ms` | JS VM on Go |
| [otto](https://github.com/robertkrimen/otto) | `81,886ms` | `12ms` | JS Interpreter on Go |
| [Anko](https://github.com/mattn/anko) | `97,517ms` | `14ms` | Interpreter on Go |
| Go | `48ms` | `3ms` | Go (native) |
| [**Tengo**](https://github.com/d5/tengo) | `2,349ms` | `5ms` | VM on Go |
| Lua | `1,416ms` | `3ms` | Lua (native) |
| [go-lua](https://github.com/Shopify/go-lua) | `4,402ms` | `5ms` | Lua VM on Go |
| [GopherLua](https://github.com/yuin/gopher-lua) | `4,023ms` | `5ms` | Lua VM on Go |
| Python | `2,588ms` | `26ms` | Python (native) |
| [starlark-go](https://github.com/google/starlark-go) | `11,126ms` | `6ms` | Python-like Interpreter on Go |
| [gpython](https://github.com/go-python/gpython) | `15,035ms` | `4ms` | Python Interpreter on Go |
| [goja](https://github.com/dop251/goja) | `5,089ms` | `5ms` | JS VM on Go |
| [otto](https://github.com/robertkrimen/otto) | `68,377ms` | `11ms` | JS Interpreter on Go |
| [Anko](https://github.com/mattn/anko) | `92,579ms` | `18ms` | Interpreter on Go |
_* [fib(35)](https://github.com/d5/tengobench/blob/master/code/fib.tengo): Fibonacci(35)_
_* [fibt(35)](https://github.com/d5/tengobench/blob/master/code/fibtc.tengo): [tail-call](https://en.wikipedia.org/wiki/Tail_call) version of Fibonacci(35)_

66
vendor/github.com/d5/tengo/compiler/bytecode.go generated vendored
View File

@ -17,32 +17,6 @@ type Bytecode struct {
Constants []objects.Object
}
// Decode reads Bytecode data from the reader.
func (b *Bytecode) Decode(r io.Reader) error {
dec := gob.NewDecoder(r)
if err := dec.Decode(&b.FileSet); err != nil {
return err
}
// TODO: files in b.FileSet.File does not have their 'set' field properly set to b.FileSet
// as it's private field and not serialized by gob encoder/decoder.
if err := dec.Decode(&b.MainFunction); err != nil {
return err
}
if err := dec.Decode(&b.Constants); err != nil {
return err
}
// replace Bool and Undefined with known value
for i, v := range b.Constants {
b.Constants[i] = cleanupObjects(v)
}
return nil
}
// Encode writes Bytecode data to the writer.
func (b *Bytecode) Encode(w io.Writer) error {
enc := gob.NewEncoder(w)
@ -59,6 +33,17 @@ func (b *Bytecode) Encode(w io.Writer) error {
return enc.Encode(b.Constants)
}
// CountObjects returns the number of objects found in Constants.
func (b *Bytecode) CountObjects() int {
n := 0
for _, c := range b.Constants {
n += objects.CountObjects(c)
}
return n
}
// FormatInstructions returns human readable string representations of
// compiled instructions.
func (b *Bytecode) FormatInstructions() []string {
@ -83,51 +68,22 @@ func (b *Bytecode) FormatConstants() (output []string) {
return
}
func cleanupObjects(o objects.Object) objects.Object {
switch o := o.(type) {
case *objects.Bool:
if o.IsFalsy() {
return objects.FalseValue
}
return objects.TrueValue
case *objects.Undefined:
return objects.UndefinedValue
case *objects.Array:
for i, v := range o.Value {
o.Value[i] = cleanupObjects(v)
}
case *objects.Map:
for k, v := range o.Value {
o.Value[k] = cleanupObjects(v)
}
}
return o
}
func init() {
gob.Register(&source.FileSet{})
gob.Register(&source.File{})
gob.Register(&objects.Array{})
gob.Register(&objects.ArrayIterator{})
gob.Register(&objects.Bool{})
gob.Register(&objects.Break{})
gob.Register(&objects.BuiltinFunction{})
gob.Register(&objects.Bytes{})
gob.Register(&objects.Char{})
gob.Register(&objects.Closure{})
gob.Register(&objects.CompiledFunction{})
gob.Register(&objects.Continue{})
gob.Register(&objects.Error{})
gob.Register(&objects.Float{})
gob.Register(&objects.ImmutableArray{})
gob.Register(&objects.ImmutableMap{})
gob.Register(&objects.Int{})
gob.Register(&objects.Map{})
gob.Register(&objects.MapIterator{})
gob.Register(&objects.ReturnValue{})
gob.Register(&objects.String{})
gob.Register(&objects.StringIterator{})
gob.Register(&objects.Time{})
gob.Register(&objects.Undefined{})
gob.Register(&objects.UserFunction{})

97
vendor/github.com/d5/tengo/compiler/bytecode_decode.go generated vendored Normal file
View File

@ -0,0 +1,97 @@
package compiler
import (
"encoding/gob"
"fmt"
"io"
"github.com/d5/tengo/objects"
)
// Decode reads Bytecode data from the reader.
func (b *Bytecode) Decode(r io.Reader, modules *objects.ModuleMap) error {
if modules == nil {
modules = objects.NewModuleMap()
}
dec := gob.NewDecoder(r)
if err := dec.Decode(&b.FileSet); err != nil {
return err
}
// TODO: files in b.FileSet.File does not have their 'set' field properly set to b.FileSet
// as it's private field and not serialized by gob encoder/decoder.
if err := dec.Decode(&b.MainFunction); err != nil {
return err
}
if err := dec.Decode(&b.Constants); err != nil {
return err
}
for i, v := range b.Constants {
fv, err := fixDecoded(v, modules)
if err != nil {
return err
}
b.Constants[i] = fv
}
return nil
}
func fixDecoded(o objects.Object, modules *objects.ModuleMap) (objects.Object, error) {
switch o := o.(type) {
case *objects.Bool:
if o.IsFalsy() {
return objects.FalseValue, nil
}
return objects.TrueValue, nil
case *objects.Undefined:
return objects.UndefinedValue, nil
case *objects.Array:
for i, v := range o.Value {
fv, err := fixDecoded(v, modules)
if err != nil {
return nil, err
}
o.Value[i] = fv
}
case *objects.ImmutableArray:
for i, v := range o.Value {
fv, err := fixDecoded(v, modules)
if err != nil {
return nil, err
}
o.Value[i] = fv
}
case *objects.Map:
for k, v := range o.Value {
fv, err := fixDecoded(v, modules)
if err != nil {
return nil, err
}
o.Value[k] = fv
}
case *objects.ImmutableMap:
modName := moduleName(o)
if mod := modules.GetBuiltinModule(modName); mod != nil {
return mod.AsImmutableMap(modName), nil
}
for k, v := range o.Value {
// encoding of user function not supported
if _, isUserFunction := v.(*objects.UserFunction); isUserFunction {
return nil, fmt.Errorf("user function not decodable")
}
fv, err := fixDecoded(v, modules)
if err != nil {
return nil, err
}
o.Value[k] = fv
}
}
return o, nil
}

129
vendor/github.com/d5/tengo/compiler/bytecode_optimize.go generated vendored Normal file
View File

@ -0,0 +1,129 @@
package compiler
import (
"fmt"
"github.com/d5/tengo/objects"
)
// RemoveDuplicates finds and remove the duplicate values in Constants.
// Note this function mutates Bytecode.
func (b *Bytecode) RemoveDuplicates() {
var deduped []objects.Object
indexMap := make(map[int]int) // mapping from old constant index to new index
ints := make(map[int64]int)
strings := make(map[string]int)
floats := make(map[float64]int)
chars := make(map[rune]int)
immutableMaps := make(map[string]int) // for modules
for curIdx, c := range b.Constants {
switch c := c.(type) {
case *objects.CompiledFunction:
// add to deduped list
indexMap[curIdx] = len(deduped)
deduped = append(deduped, c)
case *objects.ImmutableMap:
modName := moduleName(c)
newIdx, ok := immutableMaps[modName]
if modName != "" && ok {
indexMap[curIdx] = newIdx
} else {
newIdx = len(deduped)
immutableMaps[modName] = newIdx
indexMap[curIdx] = newIdx
deduped = append(deduped, c)
}
case *objects.Int:
if newIdx, ok := ints[c.Value]; ok {
indexMap[curIdx] = newIdx
} else {
newIdx = len(deduped)
ints[c.Value] = newIdx
indexMap[curIdx] = newIdx
deduped = append(deduped, c)
}
case *objects.String:
if newIdx, ok := strings[c.Value]; ok {
indexMap[curIdx] = newIdx
} else {
newIdx = len(deduped)
strings[c.Value] = newIdx
indexMap[curIdx] = newIdx
deduped = append(deduped, c)
}
case *objects.Float:
if newIdx, ok := floats[c.Value]; ok {
indexMap[curIdx] = newIdx
} else {
newIdx = len(deduped)
floats[c.Value] = newIdx
indexMap[curIdx] = newIdx
deduped = append(deduped, c)
}
case *objects.Char:
if newIdx, ok := chars[c.Value]; ok {
indexMap[curIdx] = newIdx
} else {
newIdx = len(deduped)
chars[c.Value] = newIdx
indexMap[curIdx] = newIdx
deduped = append(deduped, c)
}
default:
panic(fmt.Errorf("unsupported top-level constant type: %s", c.TypeName()))
}
}
// replace with de-duplicated constants
b.Constants = deduped
// update CONST instructions with new indexes
// main function
updateConstIndexes(b.MainFunction.Instructions, indexMap)
// other compiled functions in constants
for _, c := range b.Constants {
switch c := c.(type) {
case *objects.CompiledFunction:
updateConstIndexes(c.Instructions, indexMap)
}
}
}
func updateConstIndexes(insts []byte, indexMap map[int]int) {
i := 0
for i < len(insts) {
op := insts[i]
numOperands := OpcodeOperands[op]
_, read := ReadOperands(numOperands, insts[i+1:])
switch op {
case OpConstant:
curIdx := int(insts[i+2]) | int(insts[i+1])<<8
newIdx, ok := indexMap[curIdx]
if !ok {
panic(fmt.Errorf("constant index not found: %d", curIdx))
}
copy(insts[i:], MakeInstruction(op, newIdx))
case OpClosure:
curIdx := int(insts[i+2]) | int(insts[i+1])<<8
numFree := int(insts[i+3])
newIdx, ok := indexMap[curIdx]
if !ok {
panic(fmt.Errorf("constant index not found: %d", curIdx))
}
copy(insts[i:], MakeInstruction(op, newIdx, numFree))
}
i += 1 + read
}
}
func moduleName(mod *objects.ImmutableMap) string {
if modName, ok := mod.Value["__module_name__"].(*objects.String); ok {
return modName.Value
}
return ""
}

1
vendor/github.com/d5/tengo/compiler/compilation_scope.go generated vendored
View File

@ -6,7 +6,6 @@ import "github.com/d5/tengo/compiler/source"
// and the last two instructions that were emitted.
type CompilationScope struct {
instructions []byte
lastInstructions [2]EmittedInstruction
symbolInit map[string]bool
sourceMap map[int]source.Pos
}

262
vendor/github.com/d5/tengo/compiler/compiler.go generated vendored
View File

@ -3,7 +3,10 @@ package compiler
import (
"fmt"
"io"
"io/ioutil"
"path/filepath"
"reflect"
"strings"
"github.com/d5/tengo"
"github.com/d5/tengo/compiler/ast"
@ -16,14 +19,14 @@ import (
type Compiler struct {
file *source.File
parent *Compiler
moduleName string
modulePath string
constants []objects.Object
symbolTable *SymbolTable
scopes []CompilationScope
scopeIndex int
moduleLoader ModuleLoader
builtinModules map[string]bool
modules *objects.ModuleMap
compiledModules map[string]*objects.CompiledFunction
allowFileImport bool
loops []*Loop
loopIndex int
trace io.Writer
@ -31,12 +34,7 @@ type Compiler struct {
}
// NewCompiler creates a Compiler.
// User can optionally provide the symbol table if one wants to add or remove
// some global- or builtin- scope symbols. If not (nil), Compile will create
// a new symbol table and use the default builtin functions. Likewise, standard
// modules can be explicitly provided if user wants to add or remove some modules.
// By default, Compile will use all the standard modules otherwise.
func NewCompiler(file *source.File, symbolTable *SymbolTable, constants []objects.Object, builtinModules map[string]bool, trace io.Writer) *Compiler {
func NewCompiler(file *source.File, symbolTable *SymbolTable, constants []objects.Object, modules *objects.ModuleMap, trace io.Writer) *Compiler {
mainScope := CompilationScope{
symbolInit: make(map[string]bool),
sourceMap: make(map[int]source.Pos),
@ -45,15 +43,16 @@ func NewCompiler(file *source.File, symbolTable *SymbolTable, constants []object
// symbol table
if symbolTable == nil {
symbolTable = NewSymbolTable()
}
// add builtin functions to the symbol table
for idx, fn := range objects.Builtins {
symbolTable.DefineBuiltin(idx, fn.Name)
}
}
// builtin modules
if builtinModules == nil {
builtinModules = make(map[string]bool)
if modules == nil {
modules = objects.NewModuleMap()
}
return &Compiler{
@ -64,7 +63,7 @@ func NewCompiler(file *source.File, symbolTable *SymbolTable, constants []object
scopeIndex: 0,
loopIndex: -1,
trace: trace,
builtinModules: builtinModules,
modules: modules,
compiledModules: make(map[string]*objects.CompiledFunction),
}
}
@ -120,7 +119,7 @@ func (c *Compiler) Compile(node ast.Node) error {
return err
}
c.emit(node, OpGreaterThan)
c.emit(node, OpBinaryOp, int(token.Greater))
return nil
} else if node.Token == token.LessEq {
@ -131,7 +130,7 @@ func (c *Compiler) Compile(node ast.Node) error {
return err
}
c.emit(node, OpGreaterThanEqual)
c.emit(node, OpBinaryOp, int(token.GreaterEq))
return nil
}
@ -145,35 +144,35 @@ func (c *Compiler) Compile(node ast.Node) error {
switch node.Token {
case token.Add:
c.emit(node, OpAdd)
c.emit(node, OpBinaryOp, int(token.Add))
case token.Sub:
c.emit(node, OpSub)
c.emit(node, OpBinaryOp, int(token.Sub))
case token.Mul:
c.emit(node, OpMul)
c.emit(node, OpBinaryOp, int(token.Mul))
case token.Quo:
c.emit(node, OpDiv)
c.emit(node, OpBinaryOp, int(token.Quo))
case token.Rem:
c.emit(node, OpRem)
c.emit(node, OpBinaryOp, int(token.Rem))
case token.Greater:
c.emit(node, OpGreaterThan)
c.emit(node, OpBinaryOp, int(token.Greater))
case token.GreaterEq:
c.emit(node, OpGreaterThanEqual)
c.emit(node, OpBinaryOp, int(token.GreaterEq))
case token.Equal:
c.emit(node, OpEqual)
case token.NotEqual:
c.emit(node, OpNotEqual)
case token.And:
c.emit(node, OpBAnd)
c.emit(node, OpBinaryOp, int(token.And))
case token.Or:
c.emit(node, OpBOr)
c.emit(node, OpBinaryOp, int(token.Or))
case token.Xor:
c.emit(node, OpBXor)
c.emit(node, OpBinaryOp, int(token.Xor))
case token.AndNot:
c.emit(node, OpBAndNot)
c.emit(node, OpBinaryOp, int(token.AndNot))
case token.Shl:
c.emit(node, OpBShiftLeft)
c.emit(node, OpBinaryOp, int(token.Shl))
case token.Shr:
c.emit(node, OpBShiftRight)
c.emit(node, OpBinaryOp, int(token.Shr))
default:
return c.errorf(node, "invalid binary operator: %s", node.Token.String())
}
@ -293,6 +292,15 @@ func (c *Compiler) Compile(node ast.Node) error {
}
case *ast.BlockStmt:
if len(node.Stmts) == 0 {
return nil
}
c.symbolTable = c.symbolTable.Fork(true)
defer func() {
c.symbolTable = c.symbolTable.Parent(false)
}()
for _, stmt := range node.Stmts {
if err := c.Compile(stmt); err != nil {
return err
@ -405,10 +413,8 @@ func (c *Compiler) Compile(node ast.Node) error {
return err
}
// add OpReturn if function returns nothing
if !c.lastInstructionIs(OpReturnValue) && !c.lastInstructionIs(OpReturn) {
c.emit(node, OpReturn)
}
// code optimization
c.optimizeFunc(node)
freeSymbols := c.symbolTable.FreeSymbols()
numLocals := c.symbolTable.MaxSymbols()
@ -461,9 +467,9 @@ func (c *Compiler) Compile(node ast.Node) error {
s.LocalAssigned = true
}
c.emit(node, OpGetLocal, s.Index)
c.emit(node, OpGetLocalPtr, s.Index)
case ScopeFree:
c.emit(node, OpGetFree, s.Index)
c.emit(node, OpGetFreePtr, s.Index)
}
}
@ -487,13 +493,13 @@ func (c *Compiler) Compile(node ast.Node) error {
}
if node.Result == nil {
c.emit(node, OpReturn)
c.emit(node, OpReturn, 0)
} else {
if err := c.Compile(node.Result); err != nil {
return err
}
c.emit(node, OpReturnValue)
c.emit(node, OpReturn, 1)
}
case *ast.CallExpr:
@ -510,21 +516,57 @@ func (c *Compiler) Compile(node ast.Node) error {
c.emit(node, OpCall, len(node.Args))
case *ast.ImportExpr:
if c.builtinModules[node.ModuleName] {
if len(node.ModuleName) > tengo.MaxStringLen {
return c.error(node, objects.ErrStringLimit)
if node.ModuleName == "" {
return c.errorf(node, "empty module name")
}
c.emit(node, OpConstant, c.addConstant(&objects.String{Value: node.ModuleName}))
c.emit(node, OpGetBuiltinModule)
} else {
userMod, err := c.compileModule(node)
if mod := c.modules.Get(node.ModuleName); mod != nil {
v, err := mod.Import(node.ModuleName)
if err != nil {
return err
}
c.emit(node, OpConstant, c.addConstant(userMod))
switch v := v.(type) {
case []byte: // module written in Tengo
compiled, err := c.compileModule(node, node.ModuleName, node.ModuleName, v)
if err != nil {
return err
}
c.emit(node, OpConstant, c.addConstant(compiled))
c.emit(node, OpCall, 0)
case objects.Object: // builtin module
c.emit(node, OpConstant, c.addConstant(v))
default:
panic(fmt.Errorf("invalid import value type: %T", v))
}
} else if c.allowFileImport {
moduleName := node.ModuleName
if !strings.HasSuffix(moduleName, ".tengo") {
moduleName += ".tengo"
}
modulePath, err := filepath.Abs(moduleName)
if err != nil {
return c.errorf(node, "module file path error: %s", err.Error())
}
if err := c.checkCyclicImports(node, modulePath); err != nil {
return err
}
moduleSrc, err := ioutil.ReadFile(moduleName)
if err != nil {
return c.errorf(node, "module file read error: %s", err.Error())
}
compiled, err := c.compileModule(node, moduleName, modulePath, moduleSrc)
if err != nil {
return err
}
c.emit(node, OpConstant, c.addConstant(compiled))
c.emit(node, OpCall, 0)
} else {
return c.errorf(node, "module '%s' not found", node.ModuleName)
}
case *ast.ExportStmt:
@ -543,7 +585,7 @@ func (c *Compiler) Compile(node ast.Node) error {
}
c.emit(node, OpImmutable)
c.emit(node, OpReturnValue)
c.emit(node, OpReturn, 1)
case *ast.ErrorExpr:
if err := c.Compile(node.Expr); err != nil {
@ -602,18 +644,16 @@ func (c *Compiler) Bytecode() *Bytecode {
}
}
// SetModuleLoader sets or replaces the current module loader.
// Note that the module loader is used for user modules,
// not for the standard modules.
func (c *Compiler) SetModuleLoader(moduleLoader ModuleLoader) {
c.moduleLoader = moduleLoader
// EnableFileImport enables or disables module loading from local files.
// Local file modules are disabled by default.
func (c *Compiler) EnableFileImport(enable bool) {
c.allowFileImport = enable
}
func (c *Compiler) fork(file *source.File, moduleName string, symbolTable *SymbolTable) *Compiler {
child := NewCompiler(file, symbolTable, nil, c.builtinModules, c.trace)
child.moduleName = moduleName // name of the module to compile
func (c *Compiler) fork(file *source.File, modulePath string, symbolTable *SymbolTable) *Compiler {
child := NewCompiler(file, symbolTable, nil, c.modules, c.trace)
child.modulePath = modulePath // module file path
child.parent = c // parent to set to current compiler
child.moduleLoader = c.moduleLoader // share module loader
return child
}
@ -657,33 +697,6 @@ func (c *Compiler) addInstruction(b []byte) int {
return posNewIns
}
func (c *Compiler) setLastInstruction(op Opcode, pos int) {
c.scopes[c.scopeIndex].lastInstructions[1] = c.scopes[c.scopeIndex].lastInstructions[0]
c.scopes[c.scopeIndex].lastInstructions[0].Opcode = op
c.scopes[c.scopeIndex].lastInstructions[0].Position = pos
}
func (c *Compiler) lastInstructionIs(op Opcode) bool {
if len(c.currentInstructions()) == 0 {
return false
}
return c.scopes[c.scopeIndex].lastInstructions[0].Opcode == op
}
func (c *Compiler) removeLastInstruction() {
lastPos := c.scopes[c.scopeIndex].lastInstructions[0].Position
if c.trace != nil {
c.printTrace(fmt.Sprintf("DELET %s",
FormatInstructions(c.scopes[c.scopeIndex].instructions[lastPos:], lastPos)[0]))
}
c.scopes[c.scopeIndex].instructions = c.currentInstructions()[:lastPos]
c.scopes[c.scopeIndex].lastInstructions[0] = c.scopes[c.scopeIndex].lastInstructions[1]
}
func (c *Compiler) replaceInstruction(pos int, inst []byte) {
copy(c.currentInstructions()[pos:], inst)
@ -700,6 +713,92 @@ func (c *Compiler) changeOperand(opPos int, operand ...int) {
c.replaceInstruction(opPos, inst)
}
// optimizeFunc performs some code-level optimization for the current function instructions
// it removes unreachable (dead code) instructions and adds "returns" instruction if needed.
func (c *Compiler) optimizeFunc(node ast.Node) {
// any instructions between RETURN and the function end
// or instructions between RETURN and jump target position
// are considered as unreachable.
// pass 1. identify all jump destinations
dsts := make(map[int]bool)
iterateInstructions(c.scopes[c.scopeIndex].instructions, func(pos int, opcode Opcode, operands []int) bool {
switch opcode {
case OpJump, OpJumpFalsy, OpAndJump, OpOrJump:
dsts[operands[0]] = true
}
return true
})
var newInsts []byte
// pass 2. eliminate dead code
posMap := make(map[int]int) // old position to new position
var dstIdx int
var deadCode bool
iterateInstructions(c.scopes[c.scopeIndex].instructions, func(pos int, opcode Opcode, operands []int) bool {
switch {
case opcode == OpReturn:
if deadCode {
return true
}
deadCode = true
case dsts[pos]:
dstIdx++
deadCode = false
case deadCode:
return true
}
posMap[pos] = len(newInsts)
newInsts = append(newInsts, MakeInstruction(opcode, operands...)...)
return true
})
// pass 3. update jump positions
var lastOp Opcode
var appendReturn bool
endPos := len(c.scopes[c.scopeIndex].instructions)
iterateInstructions(newInsts, func(pos int, opcode Opcode, operands []int) bool {
switch opcode {
case OpJump, OpJumpFalsy, OpAndJump, OpOrJump:
newDst, ok := posMap[operands[0]]
if ok {
copy(newInsts[pos:], MakeInstruction(opcode, newDst))
} else if endPos == operands[0] {
// there's a jump instruction that jumps to the end of function
// compiler should append "return".
appendReturn = true
} else {
panic(fmt.Errorf("invalid jump position: %d", newDst))
}
}
lastOp = opcode
return true
})
if lastOp != OpReturn {
appendReturn = true
}
// pass 4. update source map
newSourceMap := make(map[int]source.Pos)
for pos, srcPos := range c.scopes[c.scopeIndex].sourceMap {
newPos, ok := posMap[pos]
if ok {
newSourceMap[newPos] = srcPos
}
}
c.scopes[c.scopeIndex].instructions = newInsts
c.scopes[c.scopeIndex].sourceMap = newSourceMap
// append "return"
if appendReturn {
c.emit(node, OpReturn, 0)
}
}
func (c *Compiler) emit(node ast.Node, opcode Opcode, operands ...int) int {
filePos := source.NoPos
if node != nil {
@ -709,7 +808,6 @@ func (c *Compiler) emit(node ast.Node, opcode Opcode, operands ...int) int {
inst := MakeInstruction(opcode, operands...)
pos := c.addInstruction(inst)
c.scopes[c.scopeIndex].sourceMap[pos] = filePos
c.setLastInstruction(opcode, pos)
if c.trace != nil {
c.printTrace(fmt.Sprintf("EMIT %s",

22
vendor/github.com/d5/tengo/compiler/compiler_assign.go generated vendored
View File

@ -51,27 +51,27 @@ func (c *Compiler) compileAssign(node ast.Node, lhs, rhs []ast.Expr, op token.To
switch op {
case token.AddAssign:
c.emit(node, OpAdd)
c.emit(node, OpBinaryOp, int(token.Add))
case token.SubAssign:
c.emit(node, OpSub)
c.emit(node, OpBinaryOp, int(token.Sub))
case token.MulAssign:
c.emit(node, OpMul)
c.emit(node, OpBinaryOp, int(token.Mul))
case token.QuoAssign:
c.emit(node, OpDiv)
c.emit(node, OpBinaryOp, int(token.Quo))
case token.RemAssign:
c.emit(node, OpRem)
c.emit(node, OpBinaryOp, int(token.Rem))
case token.AndAssign:
c.emit(node, OpBAnd)
c.emit(node, OpBinaryOp, int(token.And))
case token.OrAssign:
c.emit(node, OpBOr)
c.emit(node, OpBinaryOp, int(token.Or))
case token.AndNotAssign:
c.emit(node, OpBAndNot)
c.emit(node, OpBinaryOp, int(token.AndNot))
case token.XorAssign:
c.emit(node, OpBXor)
c.emit(node, OpBinaryOp, int(token.Xor))
case token.ShlAssign:
c.emit(node, OpBShiftLeft)
c.emit(node, OpBinaryOp, int(token.Shl))
case token.ShrAssign:
c.emit(node, OpBShiftRight)
c.emit(node, OpBinaryOp, int(token.Shr))
}
// compile selector expressions (right to left)

91
vendor/github.com/d5/tengo/compiler/compiler_module.go generated vendored
View File

@ -1,72 +1,31 @@
package compiler
import (
"io/ioutil"
"strings"
"github.com/d5/tengo/compiler/ast"
"github.com/d5/tengo/compiler/parser"
"github.com/d5/tengo/objects"
)
func (c *Compiler) compileModule(expr *ast.ImportExpr) (*objects.CompiledFunction, error) {
compiledModule, exists := c.loadCompiledModule(expr.ModuleName)
if exists {
return compiledModule, nil
}
moduleName := expr.ModuleName
// read module source from loader
var moduleSrc []byte
if c.moduleLoader == nil {
// default loader: read from local file
if !strings.HasSuffix(moduleName, ".tengo") {
moduleName += ".tengo"
}
if err := c.checkCyclicImports(expr, moduleName); err != nil {
return nil, err
}
var err error
moduleSrc, err = ioutil.ReadFile(moduleName)
if err != nil {
return nil, c.errorf(expr, "module file read error: %s", err.Error())
}
} else {
if err := c.checkCyclicImports(expr, moduleName); err != nil {
return nil, err
}
var err error
moduleSrc, err = c.moduleLoader(moduleName)
if err != nil {
return nil, err
}
}
compiledModule, err := c.doCompileModule(moduleName, moduleSrc)
if err != nil {
return nil, err
}
c.storeCompiledModule(moduleName, compiledModule)
return compiledModule, nil
}
func (c *Compiler) checkCyclicImports(node ast.Node, moduleName string) error {
if c.moduleName == moduleName {
return c.errorf(node, "cyclic module import: %s", moduleName)
func (c *Compiler) checkCyclicImports(node ast.Node, modulePath string) error {
if c.modulePath == modulePath {
return c.errorf(node, "cyclic module import: %s", modulePath)
} else if c.parent != nil {
return c.parent.checkCyclicImports(node, moduleName)
return c.parent.checkCyclicImports(node, modulePath)
}
return nil
}
func (c *Compiler) doCompileModule(moduleName string, src []byte) (*objects.CompiledFunction, error) {
func (c *Compiler) compileModule(node ast.Node, moduleName, modulePath string, src []byte) (*objects.CompiledFunction, error) {
if err := c.checkCyclicImports(node, modulePath); err != nil {
return nil, err
}
compiledModule, exists := c.loadCompiledModule(modulePath)
if exists {
return compiledModule, nil
}
modFile := c.file.Set().AddFile(moduleName, -1, len(src))
p := parser.NewParser(modFile, src, nil)
file, err := p.ParseFile()
@ -85,36 +44,36 @@ func (c *Compiler) doCompileModule(moduleName string, src []byte) (*objects.Comp
symbolTable = symbolTable.Fork(false)
// compile module
moduleCompiler := c.fork(modFile, moduleName, symbolTable)
moduleCompiler := c.fork(modFile, modulePath, symbolTable)
if err := moduleCompiler.Compile(file); err != nil {
return nil, err
}
// add OpReturn (== export undefined) if export is missing
if !moduleCompiler.lastInstructionIs(OpReturnValue) {
moduleCompiler.emit(nil, OpReturn)
}
// code optimization
moduleCompiler.optimizeFunc(node)
compiledFunc := moduleCompiler.Bytecode().MainFunction
compiledFunc.NumLocals = symbolTable.MaxSymbols()
c.storeCompiledModule(modulePath, compiledFunc)
return compiledFunc, nil
}
func (c *Compiler) loadCompiledModule(moduleName string) (mod *objects.CompiledFunction, ok bool) {
func (c *Compiler) loadCompiledModule(modulePath string) (mod *objects.CompiledFunction, ok bool) {
if c.parent != nil {
return c.parent.loadCompiledModule(moduleName)
return c.parent.loadCompiledModule(modulePath)
}
mod, ok = c.compiledModules[moduleName]
mod, ok = c.compiledModules[modulePath]
return
}
func (c *Compiler) storeCompiledModule(moduleName string, module *objects.CompiledFunction) {
func (c *Compiler) storeCompiledModule(modulePath string, module *objects.CompiledFunction) {
if c.parent != nil {
c.parent.storeCompiledModule(moduleName, module)
c.parent.storeCompiledModule(modulePath, module)
}
c.compiledModules[moduleName] = module
c.compiledModules[modulePath] = module
}

13
vendor/github.com/d5/tengo/compiler/instructions.go generated vendored
View File

@ -57,3 +57,16 @@ func FormatInstructions(b []byte, posOffset int) []string {
return out
}
func iterateInstructions(b []byte, fn func(pos int, opcode Opcode, operands []int) bool) {
for i := 0; i < len(b); i++ {
numOperands := OpcodeOperands[Opcode(b[i])]
operands, read := ReadOperands(numOperands, b[i+1:])
if !fn(i, b[i], operands) {
break
}
i += read
}
}

56
vendor/github.com/d5/tengo/compiler/opcodes.go generated vendored
View File

@ -6,25 +6,12 @@ type Opcode = byte
// List of opcodes
const (
OpConstant Opcode = iota // Load constant
OpAdd // Add
OpSub // Sub
OpMul // Multiply
OpDiv // Divide
OpRem // Remainder
OpBAnd // bitwise AND
OpBOr // bitwise OR
OpBXor // bitwise XOR
OpBShiftLeft // bitwise shift left
OpBShiftRight // bitwise shift right
OpBAndNot // bitwise AND NOT
OpBComplement // bitwise complement
OpPop // Pop
OpTrue // Push true
OpFalse // Push false
OpEqual // Equal ==
OpNotEqual // Not equal !=
OpGreaterThan // Greater than >=
OpGreaterThanEqual // Greater than or equal to >=
OpMinus // Minus -
OpLNot // Logical not !
OpJumpFalsy // Jump if falsy
@ -40,7 +27,6 @@ const (
OpSliceIndex // Slice operation
OpCall // Call function
OpReturn // Return
OpReturnValue // Return value
OpGetGlobal // Get global variable
OpSetGlobal // Set global variable
OpSetSelGlobal // Set global variable using selectors
@ -48,16 +34,18 @@ const (
OpSetLocal // Set local variable
OpDefineLocal // Define local variable
OpSetSelLocal // Set local variable using selectors
OpGetFreePtr // Get free variable pointer object
OpGetFree // Get free variables
OpSetFree // Set free variables
OpGetLocalPtr // Get local variable as a pointer
OpSetSelFree // Set free variables using selectors
OpGetBuiltin // Get builtin function
OpGetBuiltinModule // Get builtin module
OpClosure // Push closure
OpIteratorInit // Iterator init
OpIteratorNext // Iterator next
OpIteratorKey // Iterator key
OpIteratorValue // Iterator value
OpBinaryOp // Binary Operation
)
// OpcodeNames is opcode names.
@ -66,22 +54,9 @@ var OpcodeNames = [...]string{
OpPop: "POP",
OpTrue: "TRUE",
OpFalse: "FALSE",
OpAdd: "ADD",
OpSub: "SUB",
OpMul: "MUL",
OpDiv: "DIV",
OpRem: "REM",
OpBAnd: "AND",
OpBOr: "OR",
OpBXor: "XOR",
OpBAndNot: "ANDN",
OpBShiftLeft: "SHL",
OpBShiftRight: "SHR",
OpBComplement: "NEG",
OpEqual: "EQL",
OpNotEqual: "NEQ",
OpGreaterThan: "GTR",
OpGreaterThanEqual: "GEQ",
OpMinus: "NEG",
OpLNot: "NOT",
OpJumpFalsy: "JMPF",
@ -100,21 +75,22 @@ var OpcodeNames = [...]string{
OpSliceIndex: "SLICE",
OpCall: "CALL",
OpReturn: "RET",
OpReturnValue: "RETVAL",
OpGetLocal: "GETL",
OpSetLocal: "SETL",
OpDefineLocal: "DEFL",
OpSetSelLocal: "SETSL",
OpGetBuiltin: "BUILTIN",
OpGetBuiltinModule: "BLTMOD",
OpClosure: "CLOSURE",
OpGetFreePtr: "GETFP",
OpGetFree: "GETF",
OpSetFree: "SETF",
OpGetLocalPtr: "GETLP",
OpSetSelFree: "SETSF",
OpIteratorInit: "ITER",
OpIteratorNext: "ITNXT",
OpIteratorKey: "ITKEY",
OpIteratorValue: "ITVAL",
OpBinaryOp: "BINARYOP",
}
// OpcodeOperands is the number of operands.
@ -123,22 +99,9 @@ var OpcodeOperands = [...][]int{
OpPop: {},
OpTrue: {},
OpFalse: {},
OpAdd: {},
OpSub: {},
OpMul: {},
OpDiv: {},
OpRem: {},
OpBAnd: {},
OpBOr: {},
OpBXor: {},
OpBAndNot: {},
OpBShiftLeft: {},
OpBShiftRight: {},
OpBComplement: {},
OpEqual: {},
OpNotEqual: {},
OpGreaterThan: {},
OpGreaterThanEqual: {},
OpMinus: {},
OpLNot: {},
OpJumpFalsy: {2},
@ -156,22 +119,23 @@ var OpcodeOperands = [...][]int{
OpIndex: {},
OpSliceIndex: {},
OpCall: {1},
OpReturn: {},
OpReturnValue: {},
OpReturn: {1},
OpGetLocal: {1},
OpSetLocal: {1},
OpDefineLocal: {1},
OpSetSelLocal: {1, 1},
OpGetBuiltin: {1},
OpGetBuiltinModule: {},
OpClosure: {2, 1},
OpGetFreePtr: {1},
OpGetFree: {1},
OpSetFree: {1},
OpGetLocalPtr: {1},
OpSetSelFree: {1, 1},
OpIteratorInit: {},
OpIteratorNext: {},
OpIteratorKey: {},
OpIteratorValue: {},
OpBinaryOp: {1},
}
// ReadOperands reads operands from the bytecode.

2
vendor/github.com/d5/tengo/compiler/symbol_table.go generated vendored
View File

@ -64,9 +64,7 @@ func (t *SymbolTable) Resolve(name string) (symbol *Symbol, depth int, ok bool)
return
}
if !t.block {
depth++
}
// if symbol is defined in parent table and if it's not global/builtin
// then it's free variable.

37
vendor/github.com/d5/tengo/objects/break.go generated vendored
View File

@ -1,37 +0,0 @@
package objects
import "github.com/d5/tengo/compiler/token"
// Break represents a break statement.
type Break struct{}
// TypeName returns the name of the type.
func (o *Break) TypeName() string {
return "break"
}
func (o *Break) String() string {
return "<break>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *Break) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *Break) Copy() Object {
return &Break{}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *Break) IsFalsy() bool {
return false
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *Break) Equals(x Object) bool {
return false
}

60
vendor/github.com/d5/tengo/objects/builtin_json.go generated vendored
View File

@ -1,60 +0,0 @@
package objects
import (
"encoding/json"
"github.com/d5/tengo"
)
// to_json(v object) => bytes
func builtinToJSON(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
res, err := json.Marshal(objectToInterface(args[0]))
if err != nil {
return &Error{Value: &String{Value: err.Error()}}, nil
}
if len(res) > tengo.MaxBytesLen {
return nil, ErrBytesLimit
}
return &Bytes{Value: res}, nil
}
// from_json(data string/bytes) => object
func builtinFromJSON(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
var target interface{}
switch o := args[0].(type) {
case *Bytes:
err := json.Unmarshal(o.Value, &target)
if err != nil {
return &Error{Value: &String{Value: err.Error()}}, nil
}
case *String:
err := json.Unmarshal([]byte(o.Value), &target)
if err != nil {
return &Error{Value: &String{Value: err.Error()}}, nil
}
default:
return nil, ErrInvalidArgumentType{
Name: "first",
Expected: "bytes/string",
Found: args[0].TypeName(),
}
}
res, err := FromInterface(target)
if err != nil {
return nil, err
}
return res, nil
}

23
vendor/github.com/d5/tengo/objects/builtin_module.go generated vendored Normal file
View File

@ -0,0 +1,23 @@
package objects
// BuiltinModule is an importable module that's written in Go.
type BuiltinModule struct {
Attrs map[string]Object
}
// Import returns an immutable map for the module.
func (m *BuiltinModule) Import(moduleName string) (interface{}, error) {
return m.AsImmutableMap(moduleName), nil
}
// AsImmutableMap converts builtin module into an immutable map.
func (m *BuiltinModule) AsImmutableMap(moduleName string) *ImmutableMap {
attrs := make(map[string]Object, len(m.Attrs))
for k, v := range m.Attrs {
attrs[k] = v.Copy()
}
attrs["__module_name__"] = &String{Value: moduleName}
return &ImmutableMap{Value: attrs}
}

83
vendor/github.com/d5/tengo/objects/builtin_print.go generated vendored
View File

@ -1,83 +0,0 @@
package objects
import (
"fmt"
"github.com/d5/tengo"
)
// print(args...)
func builtinPrint(args ...Object) (Object, error) {
for _, arg := range args {
if str, ok := arg.(*String); ok {
fmt.Println(str.Value)
} else {
fmt.Println(arg.String())
}
}
return nil, nil
}
// printf("format", args...)
func builtinPrintf(args ...Object) (Object, error) {
numArgs := len(args)
if numArgs == 0 {
return nil, ErrWrongNumArguments
}
format, ok := args[0].(*String)
if !ok {
return nil, ErrInvalidArgumentType{
Name: "format",
Expected: "string",
Found: args[0].TypeName(),
}
}
if numArgs == 1 {
fmt.Print(format)
return nil, nil
}
formatArgs := make([]interface{}, numArgs-1, numArgs-1)
for idx, arg := range args[1:] {
formatArgs[idx] = objectToInterface(arg)
}
fmt.Printf(format.Value, formatArgs...)
return nil, nil
}
// sprintf("format", args...)
func builtinSprintf(args ...Object) (Object, error) {
numArgs := len(args)
if numArgs == 0 {
return nil, ErrWrongNumArguments
}
format, ok := args[0].(*String)
if !ok {
return nil, ErrInvalidArgumentType{
Name: "format",
Expected: "string",
Found: args[0].TypeName(),
}
}
if numArgs == 1 {
return format, nil // okay to return 'format' directly as String is immutable
}
formatArgs := make([]interface{}, numArgs-1, numArgs-1)
for idx, arg := range args[1:] {
formatArgs[idx] = objectToInterface(arg)
}
s := fmt.Sprintf(format.Value, formatArgs...)
if len(s) > tengo.MaxStringLen {
return nil, ErrStringLimit
}
return &String{Value: s}, nil
}

12
vendor/github.com/d5/tengo/objects/builtin_type_checks.go generated vendored
View File

@ -181,3 +181,15 @@ func builtinIsCallable(args ...Object) (Object, error) {
return FalseValue, nil
}
func builtinIsIterable(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
if _, ok := args[0].(Iterable); ok {
return TrueValue, nil
}
return FalseValue, nil
}

60
vendor/github.com/d5/tengo/objects/builtins.go generated vendored
View File

@ -2,19 +2,7 @@ package objects
// Builtins contains all default builtin functions.
// Use GetBuiltinFunctions instead of accessing Builtins directly.
var Builtins = []BuiltinFunction{
{
Name: "print",
Value: builtinPrint,
},
{
Name: "printf",
Value: builtinPrintf,
},
{
Name: "sprintf",
Value: builtinSprintf,
},
var Builtins = []*BuiltinFunction{
{
Name: "len",
Value: builtinLen,
@ -95,6 +83,10 @@ var Builtins = []BuiltinFunction{
Name: "is_immutable_map",
Value: builtinIsImmutableMap,
},
{
Name: "is_iterable",
Value: builtinIsIterable,
},
{
Name: "is_time",
Value: builtinIsTime,
@ -115,50 +107,8 @@ var Builtins = []BuiltinFunction{
Name: "is_callable",
Value: builtinIsCallable,
},
{
Name: "to_json",
Value: builtinToJSON,
},
{
Name: "from_json",
Value: builtinFromJSON,
},
{
Name: "type_name",
Value: builtinTypeName,
},
}
// AllBuiltinFunctionNames returns a list of all default builtin function names.
func AllBuiltinFunctionNames() []string {
var names []string
for _, bf := range Builtins {
names = append(names, bf.Name)
}
return names
}
// GetBuiltinFunctions returns a slice of builtin function objects.
// GetBuiltinFunctions removes the duplicate names, and, the returned builtin functions
// are not guaranteed to be in the same order as names.
func GetBuiltinFunctions(names ...string) []*BuiltinFunction {
include := make(map[string]bool)
for _, name := range names {
include[name] = true
}
var builtinFuncs []*BuiltinFunction
for _, bf := range Builtins {
if include[bf.Name] {
bf := bf
builtinFuncs = append(builtinFuncs, &bf)
}
}
return builtinFuncs
}
// GetAllBuiltinFunctions returns all builtin functions.
func GetAllBuiltinFunctions() []*BuiltinFunction {
return GetBuiltinFunctions(AllBuiltinFunctionNames()...)
}

8
vendor/github.com/d5/tengo/objects/bytes.go generated vendored
View File

@ -79,3 +79,11 @@ func (o *Bytes) IndexGet(index Object) (res Object, err error) {
return
}
// Iterate creates a bytes iterator.
func (o *Bytes) Iterate() Iterator {
return &BytesIterator{
v: o.Value,
l: len(o.Value),
}
}

57
vendor/github.com/d5/tengo/objects/bytes_iterator.go generated vendored Normal file
View File

@ -0,0 +1,57 @@
package objects
import "github.com/d5/tengo/compiler/token"
// BytesIterator represents an iterator for a string.
type BytesIterator struct {
v []byte
i int
l int
}
// TypeName returns the name of the type.
func (i *BytesIterator) TypeName() string {
return "bytes-iterator"
}
func (i *BytesIterator) String() string {
return "<bytes-iterator>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (i *BytesIterator) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// IsFalsy returns true if the value of the type is falsy.
func (i *BytesIterator) IsFalsy() bool {
return true
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (i *BytesIterator) Equals(Object) bool {
return false
}
// Copy returns a copy of the type.
func (i *BytesIterator) Copy() Object {
return &BytesIterator{v: i.v, i: i.i, l: i.l}
}
// Next returns true if there are more elements to iterate.
func (i *BytesIterator) Next() bool {
i.i++
return i.i <= i.l
}
// Key returns the key or index value of the current element.
func (i *BytesIterator) Key() Object {
return &Int{Value: int64(i.i - 1)}
}
// Value returns the value of the current element.
func (i *BytesIterator) Value() Object {
return &Int{Value: int64(i.v[i.i-1])}
}

4
vendor/github.com/d5/tengo/objects/closure.go generated vendored
View File

@ -7,7 +7,7 @@ import (
// Closure represents a function closure.
type Closure struct {
Fn *CompiledFunction
Free []*Object
Free []*ObjectPtr
}
// TypeName returns the name of the type.
@ -29,7 +29,7 @@ func (o *Closure) BinaryOp(op token.Token, rhs Object) (Object, error) {
func (o *Closure) Copy() Object {
return &Closure{
Fn: o.Fn.Copy().(*CompiledFunction),
Free: append([]*Object{}, o.Free...), // DO NOT Copy() of elements; these are variable pointers
Free: append([]*ObjectPtr{}, o.Free...), // DO NOT Copy() of elements; these are variable pointers
}
}

11
vendor/github.com/d5/tengo/objects/compiled_function.go generated vendored
View File

@ -47,3 +47,14 @@ func (o *CompiledFunction) IsFalsy() bool {
func (o *CompiledFunction) Equals(x Object) bool {
return false
}
// SourcePos returns the source position of the instruction at ip.
func (o *CompiledFunction) SourcePos(ip int) source.Pos {
for ip >= 0 {
if p, ok := o.SourceMap[ip]; ok {
return p
}
ip--
}
return source.NoPos
}

38
vendor/github.com/d5/tengo/objects/continue.go generated vendored
View File

@ -1,38 +0,0 @@
package objects
import "github.com/d5/tengo/compiler/token"
// Continue represents a continue statement.
type Continue struct {
}
// TypeName returns the name of the type.
func (o *Continue) TypeName() string {
return "continue"
}
func (o *Continue) String() string {
return "<continue>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *Continue) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *Continue) Copy() Object {
return &Continue{}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *Continue) IsFalsy() bool {
return false
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *Continue) Equals(x Object) bool {
return false
}

25
vendor/github.com/d5/tengo/objects/conversion.go generated vendored
View File

@ -1,6 +1,7 @@
package objects
import (
"errors"
"fmt"
"strconv"
"time"
@ -158,8 +159,8 @@ func ToTime(o Object) (v time.Time, ok bool) {
return
}
// objectToInterface attempts to convert an object o to an interface{} value
func objectToInterface(o Object) (res interface{}) {
// ToInterface attempts to convert an object o to an interface{} value
func ToInterface(o Object) (res interface{}) {
switch o := o.(type) {
case *Int:
res = o.Value
@ -176,13 +177,29 @@ func objectToInterface(o Object) (res interface{}) {
case *Array:
res = make([]interface{}, len(o.Value))
for i, val := range o.Value {
res.([]interface{})[i] = objectToInterface(val)
res.([]interface{})[i] = ToInterface(val)
}
case *ImmutableArray:
res = make([]interface{}, len(o.Value))
for i, val := range o.Value {
res.([]interface{})[i] = ToInterface(val)
}
case *Map:
res = make(map[string]interface{})
for key, v := range o.Value {
res.(map[string]interface{})[key] = objectToInterface(v)
res.(map[string]interface{})[key] = ToInterface(v)
}
case *ImmutableMap:
res = make(map[string]interface{})
for key, v := range o.Value {
res.(map[string]interface{})[key] = ToInterface(v)
}
case *Time:
res = o.Value
case *Error:
res = errors.New(o.String())
case *Undefined:
res = nil
case Object:
return o
}

31
vendor/github.com/d5/tengo/objects/count_objects.go generated vendored Normal file
View File

@ -0,0 +1,31 @@
package objects
// CountObjects returns the number of objects that a given object o contains.
// For scalar value types, it will always be 1. For compound value types,
// this will include its elements and all of their elements recursively.
func CountObjects(o Object) (c int) {
c = 1
switch o := o.(type) {
case *Array:
for _, v := range o.Value {
c += CountObjects(v)
}
case *ImmutableArray:
for _, v := range o.Value {
c += CountObjects(v)
}
case *Map:
for _, v := range o.Value {
c += CountObjects(v)
}
case *ImmutableMap:
for _, v := range o.Value {
c += CountObjects(v)
}
case *Error:
c += CountObjects(o.Value)
}
return
}

7
vendor/github.com/d5/tengo/objects/importable.go generated vendored Normal file
View File

@ -0,0 +1,7 @@
package objects
// Importable interface represents importable module instance.
type Importable interface {
// Import should return either an Object or module source code ([]byte).
Import(moduleName string) (interface{}, error)
}

77
vendor/github.com/d5/tengo/objects/module_map.go generated vendored Normal file
View File

@ -0,0 +1,77 @@
package objects
// ModuleMap represents a set of named modules.
// Use NewModuleMap to create a new module map.
type ModuleMap struct {
m map[string]Importable
}
// NewModuleMap creates a new module map.
func NewModuleMap() *ModuleMap {
return &ModuleMap{
m: make(map[string]Importable),
}
}
// Add adds an import module.
func (m *ModuleMap) Add(name string, module Importable) {
m.m[name] = module
}
// AddBuiltinModule adds a builtin module.
func (m *ModuleMap) AddBuiltinModule(name string, attrs map[string]Object) {
m.m[name] = &BuiltinModule{Attrs: attrs}
}
// AddSourceModule adds a source module.
func (m *ModuleMap) AddSourceModule(name string, src []byte) {
m.m[name] = &SourceModule{Src: src}
}
// Remove removes a named module.
func (m *ModuleMap) Remove(name string) {
delete(m.m, name)
}
// Get returns an import module identified by name.
// It returns if the name is not found.
func (m *ModuleMap) Get(name string) Importable {
return m.m[name]
}
// GetBuiltinModule returns a builtin module identified by name.
// It returns if the name is not found or the module is not a builtin module.
func (m *ModuleMap) GetBuiltinModule(name string) *BuiltinModule {
mod, _ := m.m[name].(*BuiltinModule)
return mod
}
// GetSourceModule returns a source module identified by name.
// It returns if the name is not found or the module is not a source module.
func (m *ModuleMap) GetSourceModule(name string) *SourceModule {
mod, _ := m.m[name].(*SourceModule)
return mod
}
// Copy creates a copy of the module map.
func (m *ModuleMap) Copy() *ModuleMap {
c := &ModuleMap{
m: make(map[string]Importable),
}
for name, mod := range m.m {
c.m[name] = mod
}
return c
}
// Len returns the number of named modules.
func (m *ModuleMap) Len() int {
return len(m.m)
}
// AddMap adds named modules from another module map.
func (m *ModuleMap) AddMap(o *ModuleMap) {
for name, mod := range o.m {
m.m[name] = mod
}
}

41
vendor/github.com/d5/tengo/objects/object_ptr.go generated vendored Normal file
View File

@ -0,0 +1,41 @@
package objects
import (
"github.com/d5/tengo/compiler/token"
)
// ObjectPtr represents a free variable.
type ObjectPtr struct {
Value *Object
}
func (o *ObjectPtr) String() string {
return "free-var"
}
// TypeName returns the name of the type.
func (o *ObjectPtr) TypeName() string {
return "<free-var>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *ObjectPtr) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *ObjectPtr) Copy() Object {
return o
}
// IsFalsy returns true if the value of the type is falsy.
func (o *ObjectPtr) IsFalsy() bool {
return o.Value == nil
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *ObjectPtr) Equals(x Object) bool {
return o == x
}

39
vendor/github.com/d5/tengo/objects/return_value.go generated vendored
View File

@ -1,39 +0,0 @@
package objects
import "github.com/d5/tengo/compiler/token"
// ReturnValue represents a value that is being returned.
type ReturnValue struct {
Value Object
}
// TypeName returns the name of the type.
func (o *ReturnValue) TypeName() string {
return "return-value"
}
func (o *ReturnValue) String() string {
return "<return-value>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *ReturnValue) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *ReturnValue) Copy() Object {
return &ReturnValue{Value: o.Copy()}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *ReturnValue) IsFalsy() bool {
return false
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *ReturnValue) Equals(x Object) bool {
return false
}

11
vendor/github.com/d5/tengo/objects/source_module.go generated vendored Normal file
View File

@ -0,0 +1,11 @@
package objects
// SourceModule is an importable module that's written in Tengo.
type SourceModule struct {
Src []byte
}
// Import returns a module source code.
func (m *SourceModule) Import(_ string) (interface{}, error) {
return m.Src, nil
}

1
vendor/github.com/d5/tengo/objects/user_function.go generated vendored
View File

@ -8,6 +8,7 @@ import (
type UserFunction struct {
Name string
Value CallableFunc
EncodingID string
}
// TypeName returns the name of the type.

3
vendor/github.com/d5/tengo/runtime/errors.go generated vendored
View File

@ -6,3 +6,6 @@ import (
// ErrStackOverflow is a stack overflow error.
var ErrStackOverflow = errors.New("stack overflow")
// ErrObjectAllocLimit is an objects allocation limit error.
var ErrObjectAllocLimit = errors.New("object allocation limit exceeded")

2
vendor/github.com/d5/tengo/runtime/frame.go generated vendored
View File

@ -7,7 +7,7 @@ import (
// Frame represents a function call frame.
type Frame struct {
fn *objects.CompiledFunction
freeVars []*objects.Object
freeVars []*objects.ObjectPtr
ip int
basePointer int
}

746
vendor/github.com/d5/tengo/runtime/vm.go generated vendored
View File

File diff suppressed because it is too large Load Diff

90
vendor/github.com/d5/tengo/script/compiled.go generated vendored
View File

@ -3,6 +3,7 @@ package script
import (
"context"
"fmt"
"sync"
"github.com/d5/tengo/compiler"
"github.com/d5/tengo/objects"
@ -12,26 +13,39 @@ import (
// Compiled is a compiled instance of the user script.
// Use Script.Compile() to create Compiled object.
type Compiled struct {
symbolTable *compiler.SymbolTable
machine *runtime.VM
globalIndexes map[string]int // global symbol name to index
bytecode *compiler.Bytecode
globals []objects.Object
maxAllocs int64
lock sync.RWMutex
}
// Run executes the compiled script in the virtual machine.
func (c *Compiled) Run() error {
return c.machine.Run()
c.lock.Lock()
defer c.lock.Unlock()
v := runtime.NewVM(c.bytecode, c.globals, c.maxAllocs)
return v.Run()
}
// RunContext is like Run but includes a context.
func (c *Compiled) RunContext(ctx context.Context) (err error) {
c.lock.Lock()
defer c.lock.Unlock()
v := runtime.NewVM(c.bytecode, c.globals, c.maxAllocs)
ch := make(chan error, 1)
go func() {
ch <- c.machine.Run()
ch <- v.Run()
}()
select {
case <-ctx.Done():
c.machine.Abort()
v.Abort()
<-ch
err = ctx.Err()
case err = <-ch:
@ -40,30 +54,58 @@ func (c *Compiled) RunContext(ctx context.Context) (err error) {
return
}
// Clone creates a new copy of Compiled.
// Cloned copies are safe for concurrent use by multiple goroutines.
func (c *Compiled) Clone() *Compiled {
c.lock.Lock()
defer c.lock.Unlock()
clone := &Compiled{
globalIndexes: c.globalIndexes,
bytecode: c.bytecode,
globals: make([]objects.Object, len(c.globals)),
maxAllocs: c.maxAllocs,
}
// copy global objects
for idx, g := range c.globals {
if g != nil {
clone.globals[idx] = g
}
}
return clone
}
// IsDefined returns true if the variable name is defined (has value) before or after the execution.
func (c *Compiled) IsDefined(name string) bool {
symbol, _, ok := c.symbolTable.Resolve(name)
c.lock.RLock()
defer c.lock.RUnlock()
idx, ok := c.globalIndexes[name]
if !ok {
return false
}
v := c.machine.Globals()[symbol.Index]
v := c.globals[idx]
if v == nil {
return false
}
return *v != objects.UndefinedValue
return v != objects.UndefinedValue
}
// Get returns a variable identified by the name.
func (c *Compiled) Get(name string) *Variable {
value := &objects.UndefinedValue
c.lock.RLock()
defer c.lock.RUnlock()
symbol, _, ok := c.symbolTable.Resolve(name)
if ok && symbol.Scope == compiler.ScopeGlobal {
value = c.machine.Globals()[symbol.Index]
value := objects.UndefinedValue
if idx, ok := c.globalIndexes[name]; ok {
value = c.globals[idx]
if value == nil {
value = &objects.UndefinedValue
value = objects.UndefinedValue
}
}
@ -75,13 +117,15 @@ func (c *Compiled) Get(name string) *Variable {
// GetAll returns all the variables that are defined by the compiled script.
func (c *Compiled) GetAll() []*Variable {
c.lock.RLock()
defer c.lock.RUnlock()
var vars []*Variable
for _, name := range c.symbolTable.Names() {
symbol, _, ok := c.symbolTable.Resolve(name)
if ok && symbol.Scope == compiler.ScopeGlobal {
value := c.machine.Globals()[symbol.Index]
for name, idx := range c.globalIndexes {
value := c.globals[idx]
if value == nil {
value = &objects.UndefinedValue
value = objects.UndefinedValue
}
vars = append(vars, &Variable{
@ -89,7 +133,6 @@ func (c *Compiled) GetAll() []*Variable {
value: value,
})
}
}
return vars
}
@ -97,17 +140,20 @@ func (c *Compiled) GetAll() []*Variable {
// Set replaces the value of a global variable identified by the name.
// An error will be returned if the name was not defined during compilation.
func (c *Compiled) Set(name string, value interface{}) error {
c.lock.Lock()
defer c.lock.Unlock()
obj, err := objects.FromInterface(value)
if err != nil {
return err
}
symbol, _, ok := c.symbolTable.Resolve(name)
if !ok || symbol.Scope != compiler.ScopeGlobal {
idx, ok := c.globalIndexes[name]
if !ok {
return fmt.Errorf("'%s' is not defined", name)
}
c.machine.Globals()[symbol.Index] = &obj
c.globals[idx] = obj
return nil
}

33
vendor/github.com/d5/tengo/script/conversion.go generated vendored
View File

@ -1,33 +0,0 @@
package script
import (
"github.com/d5/tengo/objects"
)
func objectToInterface(o objects.Object) interface{} {
switch val := o.(type) {
case *objects.Array:
return val.Value
case *objects.Map:
return val.Value
case *objects.Int:
return val.Value
case *objects.Float:
return val.Value
case *objects.Bool:
if val == objects.TrueValue {
return true
}
return false
case *objects.Char:
return val.Value
case *objects.String:
return val.Value
case *objects.Bytes:
return val.Value
case *objects.Undefined:
return nil
}
return o
}

121
vendor/github.com/d5/tengo/script/script.go generated vendored
View File

@ -14,10 +14,11 @@ import (
// Script can simplify compilation and execution of embedded scripts.
type Script struct {
variables map[string]*Variable
builtinFuncs []objects.Object
builtinModules map[string]*objects.Object
userModuleLoader compiler.ModuleLoader
modules *objects.ModuleMap
input []byte
maxAllocs int64
maxConstObjects int
enableFileImport bool
}
// New creates a Script instance with an input script.
@ -25,6 +26,8 @@ func New(input []byte) *Script {
return &Script{
variables: make(map[string]*Variable),
input: input,
maxAllocs: -1,
maxConstObjects: -1,
}
}
@ -37,7 +40,7 @@ func (s *Script) Add(name string, value interface{}) error {
s.variables[name] = &Variable{
name: name,
value: &obj,
value: obj,
}
return nil
@ -55,38 +58,31 @@ func (s *Script) Remove(name string) bool {
return true
}
// SetBuiltinFunctions allows to define builtin functions.
func (s *Script) SetBuiltinFunctions(funcs []*objects.BuiltinFunction) {
if funcs != nil {
s.builtinFuncs = make([]objects.Object, len(funcs))
for idx, fn := range funcs {
s.builtinFuncs[idx] = fn
}
} else {
s.builtinFuncs = []objects.Object{}
}
// SetImports sets import modules.
func (s *Script) SetImports(modules *objects.ModuleMap) {
s.modules = modules
}
// SetBuiltinModules allows to define builtin modules.
func (s *Script) SetBuiltinModules(modules map[string]*objects.ImmutableMap) {
if modules != nil {
s.builtinModules = make(map[string]*objects.Object, len(modules))
for k, mod := range modules {
s.builtinModules[k] = objectPtr(mod)
}
} else {
s.builtinModules = map[string]*objects.Object{}
}
// SetMaxAllocs sets the maximum number of objects allocations during the run time.
// Compiled script will return runtime.ErrObjectAllocLimit error if it exceeds this limit.
func (s *Script) SetMaxAllocs(n int64) {
s.maxAllocs = n
}
// SetUserModuleLoader sets the user module loader for the compiler.
func (s *Script) SetUserModuleLoader(loader compiler.ModuleLoader) {
s.userModuleLoader = loader
// SetMaxConstObjects sets the maximum number of objects in the compiled constants.
func (s *Script) SetMaxConstObjects(n int) {
s.maxConstObjects = n
}
// EnableFileImport enables or disables module loading from local files.
// Local file modules are disabled by default.
func (s *Script) EnableFileImport(enable bool) {
s.enableFileImport = enable
}
// Compile compiles the script with all the defined variables, and, returns Compiled object.
func (s *Script) Compile() (*Compiled, error) {
symbolTable, builtinModules, globals, err := s.prepCompile()
symbolTable, globals, err := s.prepCompile()
if err != nil {
return nil, err
}
@ -100,19 +96,41 @@ func (s *Script) Compile() (*Compiled, error) {
return nil, err
}
c := compiler.NewCompiler(srcFile, symbolTable, nil, builtinModules, nil)
if s.userModuleLoader != nil {
c.SetModuleLoader(s.userModuleLoader)
}
c := compiler.NewCompiler(srcFile, symbolTable, nil, s.modules, nil)
c.EnableFileImport(s.enableFileImport)
if err := c.Compile(file); err != nil {
return nil, err
}
// reduce globals size
globals = globals[:symbolTable.MaxSymbols()+1]
// global symbol names to indexes
globalIndexes := make(map[string]int, len(globals))
for _, name := range symbolTable.Names() {
symbol, _, _ := symbolTable.Resolve(name)
if symbol.Scope == compiler.ScopeGlobal {
globalIndexes[name] = symbol.Index
}
}
// remove duplicates from constants
bytecode := c.Bytecode()
bytecode.RemoveDuplicates()
// check the constant objects limit
if s.maxConstObjects >= 0 {
cnt := bytecode.CountObjects()
if cnt > s.maxConstObjects {
return nil, fmt.Errorf("exceeding constant objects limit: %d", cnt)
}
}
return &Compiled{
symbolTable: symbolTable,
machine: runtime.NewVM(c.Bytecode(), globals, s.builtinFuncs, s.builtinModules),
globalIndexes: globalIndexes,
bytecode: bytecode,
globals: globals,
maxAllocs: s.maxAllocs,
}, nil
}
@ -141,39 +159,18 @@ func (s *Script) RunContext(ctx context.Context) (compiled *Compiled, err error)
return
}
func (s *Script) prepCompile() (symbolTable *compiler.SymbolTable, builtinModules map[string]bool, globals []*objects.Object, err error) {
func (s *Script) prepCompile() (symbolTable *compiler.SymbolTable, globals []objects.Object, err error) {
var names []string
for name := range s.variables {
names = append(names, name)
}
symbolTable = compiler.NewSymbolTable()
if s.builtinFuncs == nil {
s.builtinFuncs = make([]objects.Object, len(objects.Builtins))
for idx, fn := range objects.Builtins {
s.builtinFuncs[idx] = &objects.BuiltinFunction{
Name: fn.Name,
Value: fn.Value,
}
}
symbolTable.DefineBuiltin(idx, fn.Name)
}
if s.builtinModules == nil {
s.builtinModules = make(map[string]*objects.Object)
}
for idx, fn := range s.builtinFuncs {
f := fn.(*objects.BuiltinFunction)
symbolTable.DefineBuiltin(idx, f.Name)
}
builtinModules = make(map[string]bool)
for name := range s.builtinModules {
builtinModules[name] = true
}
globals = make([]*objects.Object, runtime.GlobalsSize, runtime.GlobalsSize)
globals = make([]objects.Object, runtime.GlobalsSize)
for idx, name := range names {
symbol := symbolTable.Define(name)
@ -195,7 +192,3 @@ func (s *Script) copyVariables() map[string]*Variable {
return vars
}
func objectPtr(o objects.Object) *objects.Object {
return &o
}

36
vendor/github.com/d5/tengo/script/variable.go generated vendored
View File

@ -9,7 +9,7 @@ import (
// Variable is a user-defined variable for the script.
type Variable struct {
name string
value *objects.Object
value objects.Object
}
// NewVariable creates a Variable.
@ -21,7 +21,7 @@ func NewVariable(name string, value interface{}) (*Variable, error) {
return &Variable{
name: name,
value: &obj,
value: obj,
}, nil
}
@ -32,18 +32,18 @@ func (v *Variable) Name() string {
// Value returns an empty interface of the variable value.
func (v *Variable) Value() interface{} {
return objectToInterface(*v.value)
return objects.ToInterface(v.value)
}
// ValueType returns the name of the value type.
func (v *Variable) ValueType() string {
return (*v.value).TypeName()
return v.value.TypeName()
}
// Int returns int value of the variable value.
// It returns 0 if the value is not convertible to int.
func (v *Variable) Int() int {
c, _ := objects.ToInt(*v.value)
c, _ := objects.ToInt(v.value)
return c
}
@ -51,7 +51,7 @@ func (v *Variable) Int() int {
// Int64 returns int64 value of the variable value.
// It returns 0 if the value is not convertible to int64.
func (v *Variable) Int64() int64 {
c, _ := objects.ToInt64(*v.value)
c, _ := objects.ToInt64(v.value)
return c
}
@ -59,7 +59,7 @@ func (v *Variable) Int64() int64 {
// Float returns float64 value of the variable value.
// It returns 0.0 if the value is not convertible to float64.
func (v *Variable) Float() float64 {
c, _ := objects.ToFloat64(*v.value)
c, _ := objects.ToFloat64(v.value)
return c
}
@ -67,7 +67,7 @@ func (v *Variable) Float() float64 {
// Char returns rune value of the variable value.
// It returns 0 if the value is not convertible to rune.
func (v *Variable) Char() rune {
c, _ := objects.ToRune(*v.value)
c, _ := objects.ToRune(v.value)
return c
}
@ -75,7 +75,7 @@ func (v *Variable) Char() rune {
// Bool returns bool value of the variable value.
// It returns 0 if the value is not convertible to bool.
func (v *Variable) Bool() bool {
c, _ := objects.ToBool(*v.value)
c, _ := objects.ToBool(v.value)
return c
}
@ -83,11 +83,11 @@ func (v *Variable) Bool() bool {
// Array returns []interface value of the variable value.
// It returns 0 if the value is not convertible to []interface.
func (v *Variable) Array() []interface{} {
switch val := (*v.value).(type) {
switch val := v.value.(type) {
case *objects.Array:
var arr []interface{}
for _, e := range val.Value {
arr = append(arr, objectToInterface(e))
arr = append(arr, objects.ToInterface(e))
}
return arr
}
@ -98,11 +98,11 @@ func (v *Variable) Array() []interface{} {
// Map returns map[string]interface{} value of the variable value.
// It returns 0 if the value is not convertible to map[string]interface{}.
func (v *Variable) Map() map[string]interface{} {
switch val := (*v.value).(type) {
switch val := v.value.(type) {
case *objects.Map:
kv := make(map[string]interface{})
for mk, mv := range val.Value {
kv[mk] = objectToInterface(mv)
kv[mk] = objects.ToInterface(mv)
}
return kv
}
@ -113,7 +113,7 @@ func (v *Variable) Map() map[string]interface{} {
// String returns string value of the variable value.
// It returns 0 if the value is not convertible to string.
func (v *Variable) String() string {
c, _ := objects.ToString(*v.value)
c, _ := objects.ToString(v.value)
return c
}
@ -121,7 +121,7 @@ func (v *Variable) String() string {
// Bytes returns a byte slice of the variable value.
// It returns nil if the value is not convertible to byte slice.
func (v *Variable) Bytes() []byte {
c, _ := objects.ToByteSlice(*v.value)
c, _ := objects.ToByteSlice(v.value)
return c
}
@ -129,7 +129,7 @@ func (v *Variable) Bytes() []byte {
// Error returns an error if the underlying value is error object.
// If not, this returns nil.
func (v *Variable) Error() error {
err, ok := (*v.value).(*objects.Error)
err, ok := v.value.(*objects.Error)
if ok {
return errors.New(err.String())
}
@ -140,10 +140,10 @@ func (v *Variable) Error() error {
// Object returns an underlying Object of the variable value.
// Note that returned Object is a copy of an actual Object used in the script.
func (v *Variable) Object() objects.Object {
return *v.value
return v.value
}
// IsUndefined returns true if the underlying value is undefined.
func (v *Variable) IsUndefined() bool {
return *v.value == objects.UndefinedValue
return v.value == objects.UndefinedValue
}

14
vendor/github.com/d5/tengo/stdlib/builtin_modules.go generated vendored Normal file
View File

@ -0,0 +1,14 @@
package stdlib
import "github.com/d5/tengo/objects"
// BuiltinModules are builtin type standard library modules.
var BuiltinModules = map[string]map[string]objects.Object{
"math": mathModule,
"os": osModule,
"text": textModule,
"times": timesModule,
"rand": randModule,
"fmt": fmtModule,
"json": jsonModule,
}

11
vendor/github.com/d5/tengo/stdlib/errors.go generated vendored Normal file
View File

@ -0,0 +1,11 @@
package stdlib
import "github.com/d5/tengo/objects"
func wrapError(err error) objects.Object {
if err == nil {
return objects.TrueValue
}
return &objects.Error{Value: &objects.String{Value: err.Error()}}
}

116
vendor/github.com/d5/tengo/stdlib/fmt.go generated vendored Normal file
View File

@ -0,0 +1,116 @@
package stdlib
import (
"fmt"
"github.com/d5/tengo"
"github.com/d5/tengo/objects"
)
var fmtModule = map[string]objects.Object{
"print": &objects.UserFunction{Name: "print", Value: fmtPrint},
"printf": &objects.UserFunction{Name: "printf", Value: fmtPrintf},
"println": &objects.UserFunction{Name: "println", Value: fmtPrintln},
"sprintf": &objects.UserFunction{Name: "sprintf", Value: fmtSprintf},
}
func fmtPrint(args ...objects.Object) (ret objects.Object, err error) {
printArgs, err := getPrintArgs(args...)
if err != nil {
return nil, err
}
_, _ = fmt.Print(printArgs...)
return nil, nil
}
func fmtPrintf(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs == 0 {
return nil, objects.ErrWrongNumArguments
}
format, ok := args[0].(*objects.String)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "format",
Expected: "string",
Found: args[0].TypeName(),
}
}
if numArgs == 1 {
fmt.Print(format)
return nil, nil
}
formatArgs := make([]interface{}, numArgs-1, numArgs-1)
for idx, arg := range args[1:] {
formatArgs[idx] = objects.ToInterface(arg)
}
fmt.Printf(format.Value, formatArgs...)
return nil, nil
}
func fmtPrintln(args ...objects.Object) (ret objects.Object, err error) {
printArgs, err := getPrintArgs(args...)
if err != nil {
return nil, err
}
printArgs = append(printArgs, "\n")
_, _ = fmt.Print(printArgs...)
return nil, nil
}
func fmtSprintf(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs == 0 {
return nil, objects.ErrWrongNumArguments
}
format, ok := args[0].(*objects.String)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "format",
Expected: "string",
Found: args[0].TypeName(),
}
}
if numArgs == 1 {
return format, nil // okay to return 'format' directly as String is immutable
}
formatArgs := make([]interface{}, numArgs-1, numArgs-1)
for idx, arg := range args[1:] {
formatArgs[idx] = objects.ToInterface(arg)
}
s := fmt.Sprintf(format.Value, formatArgs...)
if len(s) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
return &objects.String{Value: s}, nil
}
func getPrintArgs(args ...objects.Object) ([]interface{}, error) {
var printArgs []interface{}
l := 0
for _, arg := range args {
s, _ := objects.ToString(arg)
slen := len(s)
if l+slen > tengo.MaxStringLen { // make sure length does not exceed the limit
return nil, objects.ErrStringLimit
}
l += slen
printArgs = append(printArgs, s)
}
return printArgs, nil
}

1125
vendor/github.com/d5/tengo/stdlib/func_typedefs.go generated vendored Normal file
View File

File diff suppressed because it is too large Load Diff

53
vendor/github.com/d5/tengo/stdlib/gensrcmods.go generated vendored Normal file
View File

@ -0,0 +1,53 @@
// +build ignore
package main
import (
"bytes"
"io/ioutil"
"log"
"regexp"
"strconv"
)
var tengoModFileRE = regexp.MustCompile(`^srcmod_(\w+).tengo$`)
func main() {
modules := make(map[string]string)
// enumerate all Tengo module files
files, err := ioutil.ReadDir(".")
if err != nil {
log.Fatal(err)
}
for _, file := range files {
m := tengoModFileRE.FindStringSubmatch(file.Name())
if m != nil {
modName := m[1]
src, err := ioutil.ReadFile(file.Name())
if err != nil {
log.Fatalf("file '%s' read error: %s", file.Name(), err.Error())
}
modules[modName] = string(src)
}
}
var out bytes.Buffer
out.WriteString(`// Code generated using gensrcmods.go; DO NOT EDIT.
package stdlib
// SourceModules are source type standard library modules.
var SourceModules = map[string]string{` + "\n")
for modName, modSrc := range modules {
out.WriteString("\t\"" + modName + "\": " + strconv.Quote(modSrc) + ",\n")
}
out.WriteString("}\n")
const target = "source_modules.go"
if err := ioutil.WriteFile(target, out.Bytes(), 0644); err != nil {
log.Fatal(err)
}
}

126
vendor/github.com/d5/tengo/stdlib/json.go generated vendored Normal file
View File

@ -0,0 +1,126 @@
package stdlib
import (
"bytes"
gojson "encoding/json"
"github.com/d5/tengo/objects"
"github.com/d5/tengo/stdlib/json"
)
var jsonModule = map[string]objects.Object{
"decode": &objects.UserFunction{Name: "decode", Value: jsonDecode},
"encode": &objects.UserFunction{Name: "encode", Value: jsonEncode},
"indent": &objects.UserFunction{Name: "encode", Value: jsonIndent},
"html_escape": &objects.UserFunction{Name: "html_escape", Value: jsonHTMLEscape},
}
func jsonDecode(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
switch o := args[0].(type) {
case *objects.Bytes:
v, err := json.Decode(o.Value)
if err != nil {
return &objects.Error{Value: &objects.String{Value: err.Error()}}, nil
}
return v, nil
case *objects.String:
v, err := json.Decode([]byte(o.Value))
if err != nil {
return &objects.Error{Value: &objects.String{Value: err.Error()}}, nil
}
return v, nil
default:
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bytes/string",
Found: args[0].TypeName(),
}
}
}
func jsonEncode(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
b, err := json.Encode(args[0])
if err != nil {
return &objects.Error{Value: &objects.String{Value: err.Error()}}, nil
}
return &objects.Bytes{Value: b}, nil
}
func jsonIndent(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 3 {
return nil, objects.ErrWrongNumArguments
}
prefix, ok := objects.ToString(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "prefix",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
}
indent, ok := objects.ToString(args[2])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "indent",
Expected: "string(compatible)",
Found: args[2].TypeName(),
}
}
switch o := args[0].(type) {
case *objects.Bytes:
var dst bytes.Buffer
err := gojson.Indent(&dst, o.Value, prefix, indent)
if err != nil {
return &objects.Error{Value: &objects.String{Value: err.Error()}}, nil
}
return &objects.Bytes{Value: dst.Bytes()}, nil
case *objects.String:
var dst bytes.Buffer
err := gojson.Indent(&dst, []byte(o.Value), prefix, indent)
if err != nil {
return &objects.Error{Value: &objects.String{Value: err.Error()}}, nil
}
return &objects.Bytes{Value: dst.Bytes()}, nil
default:
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bytes/string",
Found: args[0].TypeName(),
}
}
}
func jsonHTMLEscape(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
switch o := args[0].(type) {
case *objects.Bytes:
var dst bytes.Buffer
gojson.HTMLEscape(&dst, o.Value)
return &objects.Bytes{Value: dst.Bytes()}, nil
case *objects.String:
var dst bytes.Buffer
gojson.HTMLEscape(&dst, []byte(o.Value))
return &objects.Bytes{Value: dst.Bytes()}, nil
default:
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bytes/string",
Found: args[0].TypeName(),
}
}
}

374
vendor/github.com/d5/tengo/stdlib/json/decode.go generated vendored Normal file
View File

@ -0,0 +1,374 @@
// A modified version of Go's JSON implementation.
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"strconv"
"unicode"
"unicode/utf16"
"unicode/utf8"
"github.com/d5/tengo/objects"
)
// Decode parses the JSON-encoded data and returns the result object.
func Decode(data []byte) (objects.Object, error) {
var d decodeState
err := checkValid(data, &d.scan)
if err != nil {
return nil, err
}
d.init(data)
d.scan.reset()
d.scanWhile(scanSkipSpace)
return d.value()
}
// decodeState represents the state while decoding a JSON value.
type decodeState struct {
data []byte
off int // next read offset in data
opcode int // last read result
scan scanner
}
// readIndex returns the position of the last byte read.
func (d *decodeState) readIndex() int {
return d.off - 1
}
const phasePanicMsg = "JSON decoder out of sync - data changing underfoot?"
func (d *decodeState) init(data []byte) *decodeState {
d.data = data
d.off = 0
return d
}
// scanNext processes the byte at d.data[d.off].
func (d *decodeState) scanNext() {
if d.off < len(d.data) {
d.opcode = d.scan.step(&d.scan, d.data[d.off])
d.off++
} else {
d.opcode = d.scan.eof()
d.off = len(d.data) + 1 // mark processed EOF with len+1
}
}
// scanWhile processes bytes in d.data[d.off:] until it
// receives a scan code not equal to op.
func (d *decodeState) scanWhile(op int) {
s, data, i := &d.scan, d.data, d.off
for i < len(data) {
newOp := s.step(s, data[i])
i++
if newOp != op {
d.opcode = newOp
d.off = i
return
}
}
d.off = len(data) + 1 // mark processed EOF with len+1
d.opcode = d.scan.eof()
}
func (d *decodeState) value() (objects.Object, error) {
switch d.opcode {
default:
panic(phasePanicMsg)
case scanBeginArray:
o, err := d.array()
if err != nil {
return nil, err
}
d.scanNext()
return o, nil
case scanBeginObject:
o, err := d.object()
if err != nil {
return nil, err
}
d.scanNext()
return o, nil
case scanBeginLiteral:
return d.literal()
}
}
func (d *decodeState) array() (objects.Object, error) {
var arr []objects.Object
for {
// Look ahead for ] - can only happen on first iteration.
d.scanWhile(scanSkipSpace)
if d.opcode == scanEndArray {
break
}
o, err := d.value()
if err != nil {
return nil, err
}
arr = append(arr, o)
// Next token must be , or ].
if d.opcode == scanSkipSpace {
d.scanWhile(scanSkipSpace)
}
if d.opcode == scanEndArray {
break
}
if d.opcode != scanArrayValue {
panic(phasePanicMsg)
}
}
return &objects.Array{Value: arr}, nil
}
func (d *decodeState) object() (objects.Object, error) {
m := make(map[string]objects.Object)
for {
// Read opening " of string key or closing }.
d.scanWhile(scanSkipSpace)
if d.opcode == scanEndObject {
// closing } - can only happen on first iteration.
break
}
if d.opcode != scanBeginLiteral {
panic(phasePanicMsg)
}
// Read string key.
start := d.readIndex()
d.scanWhile(scanContinue)
item := d.data[start:d.readIndex()]
key, ok := unquote(item)
if !ok {
panic(phasePanicMsg)
}
// Read : before value.
if d.opcode == scanSkipSpace {
d.scanWhile(scanSkipSpace)
}
if d.opcode != scanObjectKey {
panic(phasePanicMsg)
}
d.scanWhile(scanSkipSpace)
// Read value.
o, err := d.value()
if err != nil {
return nil, err
}
m[key] = o
// Next token must be , or }.
if d.opcode == scanSkipSpace {
d.scanWhile(scanSkipSpace)
}
if d.opcode == scanEndObject {
break
}
if d.opcode != scanObjectValue {
panic(phasePanicMsg)
}
}
return &objects.Map{Value: m}, nil
}
func (d *decodeState) literal() (objects.Object, error) {
// All bytes inside literal return scanContinue op code.
start := d.readIndex()
d.scanWhile(scanContinue)
item := d.data[start:d.readIndex()]
switch c := item[0]; c {
case 'n': // null
return objects.UndefinedValue, nil
case 't', 'f': // true, false
if c == 't' {
return objects.TrueValue, nil
}
return objects.FalseValue, nil
case '"': // string
s, ok := unquote(item)
if !ok {
panic(phasePanicMsg)
}
return &objects.String{Value: s}, nil
default: // number
if c != '-' && (c < '0' || c > '9') {
panic(phasePanicMsg)
}
n, _ := strconv.ParseFloat(string(item), 10)
return &objects.Float{Value: n}, nil
}
}
// getu4 decodes \uXXXX from the beginning of s, returning the hex value,
// or it returns -1.
func getu4(s []byte) rune {
if len(s) < 6 || s[0] != '\\' || s[1] != 'u' {
return -1
}
var r rune
for _, c := range s[2:6] {
switch {
case '0' <= c && c <= '9':
c = c - '0'
case 'a' <= c && c <= 'f':
c = c - 'a' + 10
case 'A' <= c && c <= 'F':
c = c - 'A' + 10
default:
return -1
}
r = r*16 + rune(c)
}
return r
}
// unquote converts a quoted JSON string literal s into an actual string t.
// The rules are different than for Go, so cannot use strconv.Unquote.
func unquote(s []byte) (t string, ok bool) {
s, ok = unquoteBytes(s)
t = string(s)
return
}
func unquoteBytes(s []byte) (t []byte, ok bool) {
if len(s) < 2 || s[0] != '"' || s[len(s)-1] != '"' {
return
}
s = s[1 : len(s)-1]
// Check for unusual characters. If there are none,
// then no unquoting is needed, so return a slice of the
// original bytes.
r := 0
for r < len(s) {
c := s[r]
if c == '\\' || c == '"' || c < ' ' {
break
}
if c < utf8.RuneSelf {
r++
continue
}
rr, size := utf8.DecodeRune(s[r:])
if rr == utf8.RuneError && size == 1 {
break
}
r += size
}
if r == len(s) {
return s, true
}
b := make([]byte, len(s)+2*utf8.UTFMax)
w := copy(b, s[0:r])
for r < len(s) {
// Out of room? Can only happen if s is full of
// malformed UTF-8 and we're replacing each
// byte with RuneError.
if w >= len(b)-2*utf8.UTFMax {
nb := make([]byte, (len(b)+utf8.UTFMax)*2)
copy(nb, b[0:w])
b = nb
}
switch c := s[r]; {
case c == '\\':
r++
if r >= len(s) {
return
}
switch s[r] {
default:
return
case '"', '\\', '/', '\'':
b[w] = s[r]
r++
w++
case 'b':
b[w] = '\b'
r++
w++
case 'f':
b[w] = '\f'
r++
w++
case 'n':
b[w] = '\n'
r++
w++
case 'r':
b[w] = '\r'
r++
w++
case 't':
b[w] = '\t'
r++
w++
case 'u':
r--
rr := getu4(s[r:])
if rr < 0 {
return
}
r += 6
if utf16.IsSurrogate(rr) {
rr1 := getu4(s[r:])
if dec := utf16.DecodeRune(rr, rr1); dec != unicode.ReplacementChar {
// A valid pair; consume.
r += 6
w += utf8.EncodeRune(b[w:], dec)
break
}
// Invalid surrogate; fall back to replacement rune.
rr = unicode.ReplacementChar
}
w += utf8.EncodeRune(b[w:], rr)
}
// Quote, control characters are invalid.
case c == '"', c < ' ':
return
// ASCII
case c < utf8.RuneSelf:
b[w] = c
r++
w++
// Coerce to well-formed UTF-8.
default:
rr, size := utf8.DecodeRune(s[r:])
r += size
w += utf8.EncodeRune(b[w:], rr)
}
}
return b[0:w], true
}

147
vendor/github.com/d5/tengo/stdlib/json/encode.go generated vendored Normal file
View File

@ -0,0 +1,147 @@
// A modified version of Go's JSON implementation.
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import (
"encoding/base64"
"errors"
"math"
"strconv"
"github.com/d5/tengo/objects"
)
// Encode returns the JSON encoding of the object.
func Encode(o objects.Object) ([]byte, error) {
var b []byte
switch o := o.(type) {
case *objects.Array:
b = append(b, '[')
len1 := len(o.Value) - 1
for idx, elem := range o.Value {
eb, err := Encode(elem)
if err != nil {
return nil, err
}
b = append(b, eb...)
if idx < len1 {
b = append(b, ',')
}
}
b = append(b, ']')
case *objects.ImmutableArray:
b = append(b, '[')
len1 := len(o.Value) - 1
for idx, elem := range o.Value {
eb, err := Encode(elem)
if err != nil {
return nil, err
}
b = append(b, eb...)
if idx < len1 {
b = append(b, ',')
}
}
b = append(b, ']')
case *objects.Map:
b = append(b, '{')
len1 := len(o.Value) - 1
idx := 0
for key, value := range o.Value {
b = strconv.AppendQuote(b, key)
b = append(b, ':')
eb, err := Encode(value)
if err != nil {
return nil, err
}
b = append(b, eb...)
if idx < len1 {
b = append(b, ',')
}
idx++
}
b = append(b, '}')
case *objects.ImmutableMap:
b = append(b, '{')
len1 := len(o.Value) - 1
idx := 0
for key, value := range o.Value {
b = strconv.AppendQuote(b, key)
b = append(b, ':')
eb, err := Encode(value)
if err != nil {
return nil, err
}
b = append(b, eb...)
if idx < len1 {
b = append(b, ',')
}
idx++
}
b = append(b, '}')
case *objects.Bool:
if o.IsFalsy() {
b = strconv.AppendBool(b, false)
} else {
b = strconv.AppendBool(b, true)
}
case *objects.Bytes:
b = append(b, '"')
encodedLen := base64.StdEncoding.EncodedLen(len(o.Value))
dst := make([]byte, encodedLen)
base64.StdEncoding.Encode(dst, o.Value)
b = append(b, dst...)
b = append(b, '"')
case *objects.Char:
b = strconv.AppendInt(b, int64(o.Value), 10)
case *objects.Float:
var y []byte
f := o.Value
if math.IsInf(f, 0) || math.IsNaN(f) {
return nil, errors.New("unsupported float value")
}
// Convert as if by ES6 number to string conversion.
// This matches most other JSON generators.
abs := math.Abs(f)
fmt := byte('f')
if abs != 0 {
if abs < 1e-6 || abs >= 1e21 {
fmt = 'e'
}
}
y = strconv.AppendFloat(y, f, fmt, -1, 64)
if fmt == 'e' {
// clean up e-09 to e-9
n := len(y)
if n >= 4 && y[n-4] == 'e' && y[n-3] == '-' && y[n-2] == '0' {
y[n-2] = y[n-1]
y = y[:n-1]
}
}
b = append(b, y...)
case *objects.Int:
b = strconv.AppendInt(b, o.Value, 10)
case *objects.String:
b = strconv.AppendQuote(b, o.Value)
case *objects.Time:
y, err := o.Value.MarshalJSON()
if err != nil {
return nil, err
}
b = append(b, y...)
case *objects.Undefined:
b = append(b, "null"...)
default:
// unknown type: ignore
}
return b, nil
}

559
vendor/github.com/d5/tengo/stdlib/json/scanner.go generated vendored Normal file
View File

@ -0,0 +1,559 @@
// A modified version of Go's JSON implementation.
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package json
import "strconv"
func checkValid(data []byte, scan *scanner) error {
scan.reset()
for _, c := range data {
scan.bytes++
if scan.step(scan, c) == scanError {
return scan.err
}
}
if scan.eof() == scanError {
return scan.err
}
return nil
}
// A SyntaxError is a description of a JSON syntax error.
type SyntaxError struct {
msg string // description of error
Offset int64 // error occurred after reading Offset bytes
}
func (e *SyntaxError) Error() string { return e.msg }
// A scanner is a JSON scanning state machine.
// Callers call scan.reset() and then pass bytes in one at a time
// by calling scan.step(&scan, c) for each byte.
// The return value, referred to as an opcode, tells the
// caller about significant parsing events like beginning
// and ending literals, objects, and arrays, so that the
// caller can follow along if it wishes.
// The return value scanEnd indicates that a single top-level
// JSON value has been completed, *before* the byte that
// just got passed in. (The indication must be delayed in order
// to recognize the end of numbers: is 123 a whole value or
// the beginning of 12345e+6?).
type scanner struct {
// The step is a func to be called to execute the next transition.
// Also tried using an integer constant and a single func
// with a switch, but using the func directly was 10% faster
// on a 64-bit Mac Mini, and it's nicer to read.
step func(*scanner, byte) int
// Reached end of top-level value.
endTop bool
// Stack of what we're in the middle of - array values, object keys, object values.
parseState []int
// Error that happened, if any.
err error
// total bytes consumed, updated by decoder.Decode
bytes int64
}
// These values are returned by the state transition functions
// assigned to scanner.state and the method scanner.eof.
// They give details about the current state of the scan that
// callers might be interested to know about.
// It is okay to ignore the return value of any particular
// call to scanner.state: if one call returns scanError,
// every subsequent call will return scanError too.
const (
// Continue.
scanContinue = iota // uninteresting byte
scanBeginLiteral // end implied by next result != scanContinue
scanBeginObject // begin object
scanObjectKey // just finished object key (string)
scanObjectValue // just finished non-last object value
scanEndObject // end object (implies scanObjectValue if possible)
scanBeginArray // begin array
scanArrayValue // just finished array value
scanEndArray // end array (implies scanArrayValue if possible)
scanSkipSpace // space byte; can skip; known to be last "continue" result
// Stop.
scanEnd // top-level value ended *before* this byte; known to be first "stop" result
scanError // hit an error, scanner.err.
)
// These values are stored in the parseState stack.
// They give the current state of a composite value
// being scanned. If the parser is inside a nested value
// the parseState describes the nested state, outermost at entry 0.
const (
parseObjectKey = iota // parsing object key (before colon)
parseObjectValue // parsing object value (after colon)
parseArrayValue // parsing array value
)
// reset prepares the scanner for use.
// It must be called before calling s.step.
func (s *scanner) reset() {
s.step = stateBeginValue
s.parseState = s.parseState[0:0]
s.err = nil
s.endTop = false
}
// eof tells the scanner that the end of input has been reached.
// It returns a scan status just as s.step does.
func (s *scanner) eof() int {
if s.err != nil {
return scanError
}
if s.endTop {
return scanEnd
}
s.step(s, ' ')
if s.endTop {
return scanEnd
}
if s.err == nil {
s.err = &SyntaxError{"unexpected end of JSON input", s.bytes}
}
return scanError
}
// pushParseState pushes a new parse state p onto the parse stack.
func (s *scanner) pushParseState(p int) {
s.parseState = append(s.parseState, p)
}
// popParseState pops a parse state (already obtained) off the stack
// and updates s.step accordingly.
func (s *scanner) popParseState() {
n := len(s.parseState) - 1
s.parseState = s.parseState[0:n]
if n == 0 {
s.step = stateEndTop
s.endTop = true
} else {
s.step = stateEndValue
}
}
func isSpace(c byte) bool {
return c == ' ' || c == '\t' || c == '\r' || c == '\n'
}
// stateBeginValueOrEmpty is the state after reading `[`.
func stateBeginValueOrEmpty(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == ']' {
return stateEndValue(s, c)
}
return stateBeginValue(s, c)
}
// stateBeginValue is the state at the beginning of the input.
func stateBeginValue(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
switch c {
case '{':
s.step = stateBeginStringOrEmpty
s.pushParseState(parseObjectKey)
return scanBeginObject
case '[':
s.step = stateBeginValueOrEmpty
s.pushParseState(parseArrayValue)
return scanBeginArray
case '"':
s.step = stateInString
return scanBeginLiteral
case '-':
s.step = stateNeg
return scanBeginLiteral
case '0': // beginning of 0.123
s.step = state0
return scanBeginLiteral
case 't': // beginning of true
s.step = stateT
return scanBeginLiteral
case 'f': // beginning of false
s.step = stateF
return scanBeginLiteral
case 'n': // beginning of null
s.step = stateN
return scanBeginLiteral
}
if '1' <= c && c <= '9' { // beginning of 1234.5
s.step = state1
return scanBeginLiteral
}
return s.error(c, "looking for beginning of value")
}
// stateBeginStringOrEmpty is the state after reading `{`.
func stateBeginStringOrEmpty(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == '}' {
n := len(s.parseState)
s.parseState[n-1] = parseObjectValue
return stateEndValue(s, c)
}
return stateBeginString(s, c)
}
// stateBeginString is the state after reading `{"key": value,`.
func stateBeginString(s *scanner, c byte) int {
if c <= ' ' && isSpace(c) {
return scanSkipSpace
}
if c == '"' {
s.step = stateInString
return scanBeginLiteral
}
return s.error(c, "looking for beginning of object key string")
}
// stateEndValue is the state after completing a value,
// such as after reading `{}` or `true` or `["x"`.
func stateEndValue(s *scanner, c byte) int {
n := len(s.parseState)
if n == 0 {
// Completed top-level before the current byte.
s.step = stateEndTop
s.endTop = true
return stateEndTop(s, c)
}
if c <= ' ' && isSpace(c) {
s.step = stateEndValue
return scanSkipSpace
}
ps := s.parseState[n-1]
switch ps {
case parseObjectKey:
if c == ':' {
s.parseState[n-1] = parseObjectValue
s.step = stateBeginValue
return scanObjectKey
}
return s.error(c, "after object key")
case parseObjectValue:
if c == ',' {
s.parseState[n-1] = parseObjectKey
s.step = stateBeginString
return scanObjectValue
}
if c == '}' {
s.popParseState()
return scanEndObject
}
return s.error(c, "after object key:value pair")
case parseArrayValue:
if c == ',' {
s.step = stateBeginValue
return scanArrayValue
}
if c == ']' {
s.popParseState()
return scanEndArray
}
return s.error(c, "after array element")
}
return s.error(c, "")
}
// stateEndTop is the state after finishing the top-level value,
// such as after reading `{}` or `[1,2,3]`.
// Only space characters should be seen now.
func stateEndTop(s *scanner, c byte) int {
if !isSpace(c) {
// Complain about non-space byte on next call.
s.error(c, "after top-level value")
}
return scanEnd
}
// stateInString is the state after reading `"`.
func stateInString(s *scanner, c byte) int {
if c == '"' {
s.step = stateEndValue
return scanContinue
}
if c == '\\' {
s.step = stateInStringEsc
return scanContinue
}
if c < 0x20 {
return s.error(c, "in string literal")
}
return scanContinue
}
// stateInStringEsc is the state after reading `"\` during a quoted string.
func stateInStringEsc(s *scanner, c byte) int {
switch c {
case 'b', 'f', 'n', 'r', 't', '\\', '/', '"':
s.step = stateInString
return scanContinue
case 'u':
s.step = stateInStringEscU
return scanContinue
}
return s.error(c, "in string escape code")
}
// stateInStringEscU is the state after reading `"\u` during a quoted string.
func stateInStringEscU(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU1
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU1 is the state after reading `"\u1` during a quoted string.
func stateInStringEscU1(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU12
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU12 is the state after reading `"\u12` during a quoted string.
func stateInStringEscU12(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInStringEscU123
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateInStringEscU123 is the state after reading `"\u123` during a quoted string.
func stateInStringEscU123(s *scanner, c byte) int {
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
s.step = stateInString
return scanContinue
}
// numbers
return s.error(c, "in \\u hexadecimal character escape")
}
// stateNeg is the state after reading `-` during a number.
func stateNeg(s *scanner, c byte) int {
if c == '0' {
s.step = state0
return scanContinue
}
if '1' <= c && c <= '9' {
s.step = state1
return scanContinue
}
return s.error(c, "in numeric literal")
}
// state1 is the state after reading a non-zero integer during a number,
// such as after reading `1` or `100` but not `0`.
func state1(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = state1
return scanContinue
}
return state0(s, c)
}
// state0 is the state after reading `0` during a number.
func state0(s *scanner, c byte) int {
if c == '.' {
s.step = stateDot
return scanContinue
}
if c == 'e' || c == 'E' {
s.step = stateE
return scanContinue
}
return stateEndValue(s, c)
}
// stateDot is the state after reading the integer and decimal point in a number,
// such as after reading `1.`.
func stateDot(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = stateDot0
return scanContinue
}
return s.error(c, "after decimal point in numeric literal")
}
// stateDot0 is the state after reading the integer, decimal point, and subsequent
// digits of a number, such as after reading `3.14`.
func stateDot0(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
return scanContinue
}
if c == 'e' || c == 'E' {
s.step = stateE
return scanContinue
}
return stateEndValue(s, c)
}
// stateE is the state after reading the mantissa and e in a number,
// such as after reading `314e` or `0.314e`.
func stateE(s *scanner, c byte) int {
if c == '+' || c == '-' {
s.step = stateESign
return scanContinue
}
return stateESign(s, c)
}
// stateESign is the state after reading the mantissa, e, and sign in a number,
// such as after reading `314e-` or `0.314e+`.
func stateESign(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
s.step = stateE0
return scanContinue
}
return s.error(c, "in exponent of numeric literal")
}
// stateE0 is the state after reading the mantissa, e, optional sign,
// and at least one digit of the exponent in a number,
// such as after reading `314e-2` or `0.314e+1` or `3.14e0`.
func stateE0(s *scanner, c byte) int {
if '0' <= c && c <= '9' {
return scanContinue
}
return stateEndValue(s, c)
}
// stateT is the state after reading `t`.
func stateT(s *scanner, c byte) int {
if c == 'r' {
s.step = stateTr
return scanContinue
}
return s.error(c, "in literal true (expecting 'r')")
}
// stateTr is the state after reading `tr`.
func stateTr(s *scanner, c byte) int {
if c == 'u' {
s.step = stateTru
return scanContinue
}
return s.error(c, "in literal true (expecting 'u')")
}
// stateTru is the state after reading `tru`.
func stateTru(s *scanner, c byte) int {
if c == 'e' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal true (expecting 'e')")
}
// stateF is the state after reading `f`.
func stateF(s *scanner, c byte) int {
if c == 'a' {
s.step = stateFa
return scanContinue
}
return s.error(c, "in literal false (expecting 'a')")
}
// stateFa is the state after reading `fa`.
func stateFa(s *scanner, c byte) int {
if c == 'l' {
s.step = stateFal
return scanContinue
}
return s.error(c, "in literal false (expecting 'l')")
}
// stateFal is the state after reading `fal`.
func stateFal(s *scanner, c byte) int {
if c == 's' {
s.step = stateFals
return scanContinue
}
return s.error(c, "in literal false (expecting 's')")
}
// stateFals is the state after reading `fals`.
func stateFals(s *scanner, c byte) int {
if c == 'e' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal false (expecting 'e')")
}
// stateN is the state after reading `n`.
func stateN(s *scanner, c byte) int {
if c == 'u' {
s.step = stateNu
return scanContinue
}
return s.error(c, "in literal null (expecting 'u')")
}
// stateNu is the state after reading `nu`.
func stateNu(s *scanner, c byte) int {
if c == 'l' {
s.step = stateNul
return scanContinue
}
return s.error(c, "in literal null (expecting 'l')")
}
// stateNul is the state after reading `nul`.
func stateNul(s *scanner, c byte) int {
if c == 'l' {
s.step = stateEndValue
return scanContinue
}
return s.error(c, "in literal null (expecting 'l')")
}
// stateError is the state after reaching a syntax error,
// such as after reading `[1}` or `5.1.2`.
func stateError(s *scanner, c byte) int {
return scanError
}
// error records an error and switches to the error state.
func (s *scanner) error(c byte, context string) int {
s.step = stateError
s.err = &SyntaxError{"invalid character " + quoteChar(c) + " " + context, s.bytes}
return scanError
}
// quoteChar formats c as a quoted character literal
func quoteChar(c byte) string {
// special cases - different from quoted strings
if c == '\'' {
return `'\''`
}
if c == '"' {
return `'"'`
}
// use quoted string with different quotation marks
s := strconv.Quote(string(c))
return "'" + s[1:len(s)-1] + "'"
}

74
vendor/github.com/d5/tengo/stdlib/math.go generated vendored Normal file
View File

@ -0,0 +1,74 @@
package stdlib
import (
"math"
"github.com/d5/tengo/objects"
)
var mathModule = map[string]objects.Object{
"e": &objects.Float{Value: math.E},
"pi": &objects.Float{Value: math.Pi},
"phi": &objects.Float{Value: math.Phi},
"sqrt2": &objects.Float{Value: math.Sqrt2},
"sqrtE": &objects.Float{Value: math.SqrtE},
"sqrtPi": &objects.Float{Value: math.SqrtPi},
"sqrtPhi": &objects.Float{Value: math.SqrtPhi},
"ln2": &objects.Float{Value: math.Ln2},
"log2E": &objects.Float{Value: math.Log2E},
"ln10": &objects.Float{Value: math.Ln10},
"log10E": &objects.Float{Value: math.Log10E},
"abs": &objects.UserFunction{Name: "abs", Value: FuncAFRF(math.Abs)},
"acos": &objects.UserFunction{Name: "acos", Value: FuncAFRF(math.Acos)},
"acosh": &objects.UserFunction{Name: "acosh", Value: FuncAFRF(math.Acosh)},
"asin": &objects.UserFunction{Name: "asin", Value: FuncAFRF(math.Asin)},
"asinh": &objects.UserFunction{Name: "asinh", Value: FuncAFRF(math.Asinh)},
"atan": &objects.UserFunction{Name: "atan", Value: FuncAFRF(math.Atan)},
"atan2": &objects.UserFunction{Name: "atan2", Value: FuncAFFRF(math.Atan2)},
"atanh": &objects.UserFunction{Name: "atanh", Value: FuncAFRF(math.Atanh)},
"cbrt": &objects.UserFunction{Name: "cbrt", Value: FuncAFRF(math.Cbrt)},
"ceil": &objects.UserFunction{Name: "ceil", Value: FuncAFRF(math.Ceil)},
"copysign": &objects.UserFunction{Name: "copysign", Value: FuncAFFRF(math.Copysign)},
"cos": &objects.UserFunction{Name: "cos", Value: FuncAFRF(math.Cos)},
"cosh": &objects.UserFunction{Name: "cosh", Value: FuncAFRF(math.Cosh)},
"dim": &objects.UserFunction{Name: "dim", Value: FuncAFFRF(math.Dim)},
"erf": &objects.UserFunction{Name: "erf", Value: FuncAFRF(math.Erf)},
"erfc": &objects.UserFunction{Name: "erfc", Value: FuncAFRF(math.Erfc)},
"exp": &objects.UserFunction{Name: "exp", Value: FuncAFRF(math.Exp)},
"exp2": &objects.UserFunction{Name: "exp2", Value: FuncAFRF(math.Exp2)},
"expm1": &objects.UserFunction{Name: "expm1", Value: FuncAFRF(math.Expm1)},
"floor": &objects.UserFunction{Name: "floor", Value: FuncAFRF(math.Floor)},
"gamma": &objects.UserFunction{Name: "gamma", Value: FuncAFRF(math.Gamma)},
"hypot": &objects.UserFunction{Name: "hypot", Value: FuncAFFRF(math.Hypot)},
"ilogb": &objects.UserFunction{Name: "ilogb", Value: FuncAFRI(math.Ilogb)},
"inf": &objects.UserFunction{Name: "inf", Value: FuncAIRF(math.Inf)},
"is_inf": &objects.UserFunction{Name: "is_inf", Value: FuncAFIRB(math.IsInf)},
"is_nan": &objects.UserFunction{Name: "is_nan", Value: FuncAFRB(math.IsNaN)},
"j0": &objects.UserFunction{Name: "j0", Value: FuncAFRF(math.J0)},
"j1": &objects.UserFunction{Name: "j1", Value: FuncAFRF(math.J1)},
"jn": &objects.UserFunction{Name: "jn", Value: FuncAIFRF(math.Jn)},
"ldexp": &objects.UserFunction{Name: "ldexp", Value: FuncAFIRF(math.Ldexp)},
"log": &objects.UserFunction{Name: "log", Value: FuncAFRF(math.Log)},
"log10": &objects.UserFunction{Name: "log10", Value: FuncAFRF(math.Log10)},
"log1p": &objects.UserFunction{Name: "log1p", Value: FuncAFRF(math.Log1p)},
"log2": &objects.UserFunction{Name: "log2", Value: FuncAFRF(math.Log2)},
"logb": &objects.UserFunction{Name: "logb", Value: FuncAFRF(math.Logb)},
"max": &objects.UserFunction{Name: "max", Value: FuncAFFRF(math.Max)},
"min": &objects.UserFunction{Name: "min", Value: FuncAFFRF(math.Min)},
"mod": &objects.UserFunction{Name: "mod", Value: FuncAFFRF(math.Mod)},
"nan": &objects.UserFunction{Name: "nan", Value: FuncARF(math.NaN)},
"nextafter": &objects.UserFunction{Name: "nextafter", Value: FuncAFFRF(math.Nextafter)},
"pow": &objects.UserFunction{Name: "pow", Value: FuncAFFRF(math.Pow)},
"pow10": &objects.UserFunction{Name: "pow10", Value: FuncAIRF(math.Pow10)},
"remainder": &objects.UserFunction{Name: "remainder", Value: FuncAFFRF(math.Remainder)},
"signbit": &objects.UserFunction{Name: "signbit", Value: FuncAFRB(math.Signbit)},
"sin": &objects.UserFunction{Name: "sin", Value: FuncAFRF(math.Sin)},
"sinh": &objects.UserFunction{Name: "sinh", Value: FuncAFRF(math.Sinh)},
"sqrt": &objects.UserFunction{Name: "sqrt", Value: FuncAFRF(math.Sqrt)},
"tan": &objects.UserFunction{Name: "tan", Value: FuncAFRF(math.Tan)},
"tanh": &objects.UserFunction{Name: "tanh", Value: FuncAFRF(math.Tanh)},
"trunc": &objects.UserFunction{Name: "trunc", Value: FuncAFRF(math.Trunc)},
"y0": &objects.UserFunction{Name: "y0", Value: FuncAFRF(math.Y0)},
"y1": &objects.UserFunction{Name: "y1", Value: FuncAFRF(math.Y1)},
"yn": &objects.UserFunction{Name: "yn", Value: FuncAIFRF(math.Yn)},
}

492
vendor/github.com/d5/tengo/stdlib/os.go generated vendored Normal file
View File

@ -0,0 +1,492 @@
package stdlib
import (
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"github.com/d5/tengo"
"github.com/d5/tengo/objects"
)
var osModule = map[string]objects.Object{
"o_rdonly": &objects.Int{Value: int64(os.O_RDONLY)},
"o_wronly": &objects.Int{Value: int64(os.O_WRONLY)},
"o_rdwr": &objects.Int{Value: int64(os.O_RDWR)},
"o_append": &objects.Int{Value: int64(os.O_APPEND)},
"o_create": &objects.Int{Value: int64(os.O_CREATE)},
"o_excl": &objects.Int{Value: int64(os.O_EXCL)},
"o_sync": &objects.Int{Value: int64(os.O_SYNC)},
"o_trunc": &objects.Int{Value: int64(os.O_TRUNC)},
"mode_dir": &objects.Int{Value: int64(os.ModeDir)},
"mode_append": &objects.Int{Value: int64(os.ModeAppend)},
"mode_exclusive": &objects.Int{Value: int64(os.ModeExclusive)},
"mode_temporary": &objects.Int{Value: int64(os.ModeTemporary)},
"mode_symlink": &objects.Int{Value: int64(os.ModeSymlink)},
"mode_device": &objects.Int{Value: int64(os.ModeDevice)},
"mode_named_pipe": &objects.Int{Value: int64(os.ModeNamedPipe)},
"mode_socket": &objects.Int{Value: int64(os.ModeSocket)},
"mode_setuid": &objects.Int{Value: int64(os.ModeSetuid)},
"mode_setgui": &objects.Int{Value: int64(os.ModeSetgid)},
"mode_char_device": &objects.Int{Value: int64(os.ModeCharDevice)},
"mode_sticky": &objects.Int{Value: int64(os.ModeSticky)},
"mode_type": &objects.Int{Value: int64(os.ModeType)},
"mode_perm": &objects.Int{Value: int64(os.ModePerm)},
"path_separator": &objects.Char{Value: os.PathSeparator},
"path_list_separator": &objects.Char{Value: os.PathListSeparator},
"dev_null": &objects.String{Value: os.DevNull},
"seek_set": &objects.Int{Value: int64(io.SeekStart)},
"seek_cur": &objects.Int{Value: int64(io.SeekCurrent)},
"seek_end": &objects.Int{Value: int64(io.SeekEnd)},
"args": &objects.UserFunction{Name: "args", Value: osArgs}, // args() => array(string)
"chdir": &objects.UserFunction{Name: "chdir", Value: FuncASRE(os.Chdir)}, // chdir(dir string) => error
"chmod": osFuncASFmRE("chmod", os.Chmod), // chmod(name string, mode int) => error
"chown": &objects.UserFunction{Name: "chown", Value: FuncASIIRE(os.Chown)}, // chown(name string, uid int, gid int) => error
"clearenv": &objects.UserFunction{Name: "clearenv", Value: FuncAR(os.Clearenv)}, // clearenv()
"environ": &objects.UserFunction{Name: "environ", Value: FuncARSs(os.Environ)}, // environ() => array(string)
"exit": &objects.UserFunction{Name: "exit", Value: FuncAIR(os.Exit)}, // exit(code int)
"expand_env": &objects.UserFunction{Name: "expand_env", Value: osExpandEnv}, // expand_env(s string) => string
"getegid": &objects.UserFunction{Name: "getegid", Value: FuncARI(os.Getegid)}, // getegid() => int
"getenv": &objects.UserFunction{Name: "getenv", Value: FuncASRS(os.Getenv)}, // getenv(s string) => string
"geteuid": &objects.UserFunction{Name: "geteuid", Value: FuncARI(os.Geteuid)}, // geteuid() => int
"getgid": &objects.UserFunction{Name: "getgid", Value: FuncARI(os.Getgid)}, // getgid() => int
"getgroups": &objects.UserFunction{Name: "getgroups", Value: FuncARIsE(os.Getgroups)}, // getgroups() => array(string)/error
"getpagesize": &objects.UserFunction{Name: "getpagesize", Value: FuncARI(os.Getpagesize)}, // getpagesize() => int
"getpid": &objects.UserFunction{Name: "getpid", Value: FuncARI(os.Getpid)}, // getpid() => int
"getppid": &objects.UserFunction{Name: "getppid", Value: FuncARI(os.Getppid)}, // getppid() => int
"getuid": &objects.UserFunction{Name: "getuid", Value: FuncARI(os.Getuid)}, // getuid() => int
"getwd": &objects.UserFunction{Name: "getwd", Value: FuncARSE(os.Getwd)}, // getwd() => string/error
"hostname": &objects.UserFunction{Name: "hostname", Value: FuncARSE(os.Hostname)}, // hostname() => string/error
"lchown": &objects.UserFunction{Name: "lchown", Value: FuncASIIRE(os.Lchown)}, // lchown(name string, uid int, gid int) => error
"link": &objects.UserFunction{Name: "link", Value: FuncASSRE(os.Link)}, // link(oldname string, newname string) => error
"lookup_env": &objects.UserFunction{Name: "lookup_env", Value: osLookupEnv}, // lookup_env(key string) => string/false
"mkdir": osFuncASFmRE("mkdir", os.Mkdir), // mkdir(name string, perm int) => error
"mkdir_all": osFuncASFmRE("mkdir_all", os.MkdirAll), // mkdir_all(name string, perm int) => error
"readlink": &objects.UserFunction{Name: "readlink", Value: FuncASRSE(os.Readlink)}, // readlink(name string) => string/error
"remove": &objects.UserFunction{Name: "remove", Value: FuncASRE(os.Remove)}, // remove(name string) => error
"remove_all": &objects.UserFunction{Name: "remove_all", Value: FuncASRE(os.RemoveAll)}, // remove_all(name string) => error
"rename": &objects.UserFunction{Name: "rename", Value: FuncASSRE(os.Rename)}, // rename(oldpath string, newpath string) => error
"setenv": &objects.UserFunction{Name: "setenv", Value: FuncASSRE(os.Setenv)}, // setenv(key string, value string) => error
"symlink": &objects.UserFunction{Name: "symlink", Value: FuncASSRE(os.Symlink)}, // symlink(oldname string newname string) => error
"temp_dir": &objects.UserFunction{Name: "temp_dir", Value: FuncARS(os.TempDir)}, // temp_dir() => string
"truncate": &objects.UserFunction{Name: "truncate", Value: FuncASI64RE(os.Truncate)}, // truncate(name string, size int) => error
"unsetenv": &objects.UserFunction{Name: "unsetenv", Value: FuncASRE(os.Unsetenv)}, // unsetenv(key string) => error
"create": &objects.UserFunction{Name: "create", Value: osCreate}, // create(name string) => imap(file)/error
"open": &objects.UserFunction{Name: "open", Value: osOpen}, // open(name string) => imap(file)/error
"open_file": &objects.UserFunction{Name: "open_file", Value: osOpenFile}, // open_file(name string, flag int, perm int) => imap(file)/error
"find_process": &objects.UserFunction{Name: "find_process", Value: osFindProcess}, // find_process(pid int) => imap(process)/error
"start_process": &objects.UserFunction{Name: "start_process", Value: osStartProcess}, // start_process(name string, argv array(string), dir string, env array(string)) => imap(process)/error
"exec_look_path": &objects.UserFunction{Name: "exec_look_path", Value: FuncASRSE(exec.LookPath)}, // exec_look_path(file) => string/error
"exec": &objects.UserFunction{Name: "exec", Value: osExec}, // exec(name, args...) => command
"stat": &objects.UserFunction{Name: "stat", Value: osStat}, // stat(name) => imap(fileinfo)/error
"read_file": &objects.UserFunction{Name: "read_file", Value: osReadFile}, // readfile(name) => array(byte)/error
}
func osReadFile(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
fname, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
bytes, err := ioutil.ReadFile(fname)
if err != nil {
return wrapError(err), nil
}
if len(bytes) > tengo.MaxBytesLen {
return nil, objects.ErrBytesLimit
}
return &objects.Bytes{Value: bytes}, nil
}
func osStat(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
fname, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
stat, err := os.Stat(fname)
if err != nil {
return wrapError(err), nil
}
fstat := &objects.ImmutableMap{
Value: map[string]objects.Object{
"name": &objects.String{Value: stat.Name()},
"mtime": &objects.Time{Value: stat.ModTime()},
"size": &objects.Int{Value: stat.Size()},
"mode": &objects.Int{Value: int64(stat.Mode())},
},
}
if stat.IsDir() {
fstat.Value["directory"] = objects.TrueValue
} else {
fstat.Value["directory"] = objects.FalseValue
}
return fstat, nil
}
func osCreate(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
res, err := os.Create(s1)
if err != nil {
return wrapError(err), nil
}
return makeOSFile(res), nil
}
func osOpen(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
res, err := os.Open(s1)
if err != nil {
return wrapError(err), nil
}
return makeOSFile(res), nil
}
func osOpenFile(args ...objects.Object) (objects.Object, error) {
if len(args) != 3 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
i2, ok := objects.ToInt(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
}
i3, ok := objects.ToInt(args[2])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
}
res, err := os.OpenFile(s1, i2, os.FileMode(i3))
if err != nil {
return wrapError(err), nil
}
return makeOSFile(res), nil
}
func osArgs(args ...objects.Object) (objects.Object, error) {
if len(args) != 0 {
return nil, objects.ErrWrongNumArguments
}
arr := &objects.Array{}
for _, osArg := range os.Args {
if len(osArg) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
arr.Value = append(arr.Value, &objects.String{Value: osArg})
}
return arr, nil
}
func osFuncASFmRE(name string, fn func(string, os.FileMode) error) *objects.UserFunction {
return &objects.UserFunction{
Name: name,
Value: func(args ...objects.Object) (objects.Object, error) {
if len(args) != 2 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
i2, ok := objects.ToInt64(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
}
return wrapError(fn(s1, os.FileMode(i2))), nil
},
}
}
func osLookupEnv(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
res, ok := os.LookupEnv(s1)
if !ok {
return objects.FalseValue, nil
}
if len(res) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
return &objects.String{Value: res}, nil
}
func osExpandEnv(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
var vlen int
var failed bool
s := os.Expand(s1, func(k string) string {
if failed {
return ""
}
v := os.Getenv(k)
// this does not count the other texts that are not being replaced
// but the code checks the final length at the end
vlen += len(v)
if vlen > tengo.MaxStringLen {
failed = true
return ""
}
return v
})
if failed || len(s) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
return &objects.String{Value: s}, nil
}
func osExec(args ...objects.Object) (objects.Object, error) {
if len(args) == 0 {
return nil, objects.ErrWrongNumArguments
}
name, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
var execArgs []string
for idx, arg := range args[1:] {
execArg, ok := objects.ToString(arg)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: fmt.Sprintf("args[%d]", idx),
Expected: "string(compatible)",
Found: args[1+idx].TypeName(),
}
}
execArgs = append(execArgs, execArg)
}
return makeOSExecCommand(exec.Command(name, execArgs...)), nil
}
func osFindProcess(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
proc, err := os.FindProcess(i1)
if err != nil {
return wrapError(err), nil
}
return makeOSProcess(proc), nil
}
func osStartProcess(args ...objects.Object) (objects.Object, error) {
if len(args) != 4 {
return nil, objects.ErrWrongNumArguments
}
name, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
var argv []string
var err error
switch arg1 := args[1].(type) {
case *objects.Array:
argv, err = stringArray(arg1.Value, "second")
if err != nil {
return nil, err
}
case *objects.ImmutableArray:
argv, err = stringArray(arg1.Value, "second")
if err != nil {
return nil, err
}
default:
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "array",
Found: arg1.TypeName(),
}
}
dir, ok := objects.ToString(args[2])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "third",
Expected: "string(compatible)",
Found: args[2].TypeName(),
}
}
var env []string
switch arg3 := args[3].(type) {
case *objects.Array:
env, err = stringArray(arg3.Value, "fourth")
if err != nil {
return nil, err
}
case *objects.ImmutableArray:
env, err = stringArray(arg3.Value, "fourth")
if err != nil {
return nil, err
}
default:
return nil, objects.ErrInvalidArgumentType{
Name: "fourth",
Expected: "array",
Found: arg3.TypeName(),
}
}
proc, err := os.StartProcess(name, argv, &os.ProcAttr{
Dir: dir,
Env: env,
})
if err != nil {
return wrapError(err), nil
}
return makeOSProcess(proc), nil
}
func stringArray(arr []objects.Object, argName string) ([]string, error) {
var sarr []string
for idx, elem := range arr {
str, ok := elem.(*objects.String)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: fmt.Sprintf("%s[%d]", argName, idx),
Expected: "string",
Found: elem.TypeName(),
}
}
sarr = append(sarr, str.Value)
}
return sarr, nil
}

113
vendor/github.com/d5/tengo/stdlib/os_exec.go generated vendored Normal file
View File

@ -0,0 +1,113 @@
package stdlib
import (
"os/exec"
"github.com/d5/tengo/objects"
)
func makeOSExecCommand(cmd *exec.Cmd) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
// combined_output() => bytes/error
"combined_output": &objects.UserFunction{Name: "combined_output", Value: FuncARYE(cmd.CombinedOutput)}, //
// output() => bytes/error
"output": &objects.UserFunction{Name: "output", Value: FuncARYE(cmd.Output)}, //
// run() => error
"run": &objects.UserFunction{Name: "run", Value: FuncARE(cmd.Run)}, //
// start() => error
"start": &objects.UserFunction{Name: "start", Value: FuncARE(cmd.Start)}, //
// wait() => error
"wait": &objects.UserFunction{Name: "wait", Value: FuncARE(cmd.Wait)}, //
// set_path(path string)
"set_path": &objects.UserFunction{
Name: "set_path",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
cmd.Path = s1
return objects.UndefinedValue, nil
},
},
// set_dir(dir string)
"set_dir": &objects.UserFunction{
Name: "set_dir",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
cmd.Dir = s1
return objects.UndefinedValue, nil
},
},
// set_env(env array(string))
"set_env": &objects.UserFunction{
Name: "set_env",
Value: func(args ...objects.Object) (objects.Object, error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
var env []string
var err error
switch arg0 := args[0].(type) {
case *objects.Array:
env, err = stringArray(arg0.Value, "first")
if err != nil {
return nil, err
}
case *objects.ImmutableArray:
env, err = stringArray(arg0.Value, "first")
if err != nil {
return nil, err
}
default:
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "array",
Found: arg0.TypeName(),
}
}
cmd.Env = env
return objects.UndefinedValue, nil
},
},
// process() => imap(process)
"process": &objects.UserFunction{
Name: "process",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 0 {
return nil, objects.ErrWrongNumArguments
}
return makeOSProcess(cmd.Process), nil
},
},
},
}
}

96
vendor/github.com/d5/tengo/stdlib/os_file.go generated vendored Normal file
View File

@ -0,0 +1,96 @@
package stdlib
import (
"os"
"github.com/d5/tengo/objects"
)
func makeOSFile(file *os.File) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
// chdir() => true/error
"chdir": &objects.UserFunction{Name: "chdir", Value: FuncARE(file.Chdir)}, //
// chown(uid int, gid int) => true/error
"chown": &objects.UserFunction{Name: "chown", Value: FuncAIIRE(file.Chown)}, //
// close() => error
"close": &objects.UserFunction{Name: "close", Value: FuncARE(file.Close)}, //
// name() => string
"name": &objects.UserFunction{Name: "name", Value: FuncARS(file.Name)}, //
// readdirnames(n int) => array(string)/error
"readdirnames": &objects.UserFunction{Name: "readdirnames", Value: FuncAIRSsE(file.Readdirnames)}, //
// sync() => error
"sync": &objects.UserFunction{Name: "sync", Value: FuncARE(file.Sync)}, //
// write(bytes) => int/error
"write": &objects.UserFunction{Name: "write", Value: FuncAYRIE(file.Write)}, //
// write(string) => int/error
"write_string": &objects.UserFunction{Name: "write_string", Value: FuncASRIE(file.WriteString)}, //
// read(bytes) => int/error
"read": &objects.UserFunction{Name: "read", Value: FuncAYRIE(file.Read)}, //
// chmod(mode int) => error
"chmod": &objects.UserFunction{
Name: "chmod",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
return wrapError(file.Chmod(os.FileMode(i1))), nil
},
},
// seek(offset int, whence int) => int/error
"seek": &objects.UserFunction{
Name: "seek",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
i2, ok := objects.ToInt(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
}
res, err := file.Seek(i1, i2)
if err != nil {
return wrapError(err), nil
}
return &objects.Int{Value: res}, nil
},
},
// stat() => imap(fileinfo)/error
"stat": &objects.UserFunction{
Name: "start",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 0 {
return nil, objects.ErrWrongNumArguments
}
return osStat(&objects.String{Value: file.Name()})
},
},
},
}
}

62
vendor/github.com/d5/tengo/stdlib/os_process.go generated vendored Normal file
View File

@ -0,0 +1,62 @@
package stdlib
import (
"os"
"syscall"
"github.com/d5/tengo/objects"
)
func makeOSProcessState(state *os.ProcessState) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
"exited": &objects.UserFunction{Name: "exited", Value: FuncARB(state.Exited)}, //
"pid": &objects.UserFunction{Name: "pid", Value: FuncARI(state.Pid)}, //
"string": &objects.UserFunction{Name: "string", Value: FuncARS(state.String)}, //
"success": &objects.UserFunction{Name: "success", Value: FuncARB(state.Success)}, //
},
}
}
func makeOSProcess(proc *os.Process) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
"kill": &objects.UserFunction{Name: "kill", Value: FuncARE(proc.Kill)}, //
"release": &objects.UserFunction{Name: "release", Value: FuncARE(proc.Release)}, //
"signal": &objects.UserFunction{
Name: "signal",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
return wrapError(proc.Signal(syscall.Signal(i1))), nil
},
},
"wait": &objects.UserFunction{
Name: "wait",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 0 {
return nil, objects.ErrWrongNumArguments
}
state, err := proc.Wait()
if err != nil {
return wrapError(err), nil
}
return makeOSProcessState(state), nil
},
},
},
}
}

102
vendor/github.com/d5/tengo/stdlib/rand.go generated vendored Normal file
View File

@ -0,0 +1,102 @@
package stdlib
import (
"math/rand"
"github.com/d5/tengo/objects"
)
var randModule = map[string]objects.Object{
"int": &objects.UserFunction{Name: "int", Value: FuncARI64(rand.Int63)},
"float": &objects.UserFunction{Name: "float", Value: FuncARF(rand.Float64)},
"intn": &objects.UserFunction{Name: "intn", Value: FuncAI64RI64(rand.Int63n)},
"exp_float": &objects.UserFunction{Name: "exp_float", Value: FuncARF(rand.ExpFloat64)},
"norm_float": &objects.UserFunction{Name: "norm_float", Value: FuncARF(rand.NormFloat64)},
"perm": &objects.UserFunction{Name: "perm", Value: FuncAIRIs(rand.Perm)},
"seed": &objects.UserFunction{Name: "seed", Value: FuncAI64R(rand.Seed)},
"read": &objects.UserFunction{
Name: "read",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
y1, ok := args[0].(*objects.Bytes)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bytes",
Found: args[0].TypeName(),
}
}
res, err := rand.Read(y1.Value)
if err != nil {
ret = wrapError(err)
return
}
return &objects.Int{Value: int64(res)}, nil
},
},
"rand": &objects.UserFunction{
Name: "rand",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
i1, ok := objects.ToInt64(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
}
src := rand.NewSource(i1)
return randRand(rand.New(src)), nil
},
},
}
func randRand(r *rand.Rand) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
"int": &objects.UserFunction{Name: "int", Value: FuncARI64(r.Int63)},
"float": &objects.UserFunction{Name: "float", Value: FuncARF(r.Float64)},
"intn": &objects.UserFunction{Name: "intn", Value: FuncAI64RI64(r.Int63n)},
"exp_float": &objects.UserFunction{Name: "exp_float", Value: FuncARF(r.ExpFloat64)},
"norm_float": &objects.UserFunction{Name: "norm_float", Value: FuncARF(r.NormFloat64)},
"perm": &objects.UserFunction{Name: "perm", Value: FuncAIRIs(r.Perm)},
"seed": &objects.UserFunction{Name: "seed", Value: FuncAI64R(r.Seed)},
"read": &objects.UserFunction{
Name: "read",
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
return nil, objects.ErrWrongNumArguments
}
y1, ok := args[0].(*objects.Bytes)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bytes",
Found: args[0].TypeName(),
}
}
res, err := r.Read(y1.Value)
if err != nil {
ret = wrapError(err)
return
}
return &objects.Int{Value: int64(res)}, nil
},
},
},
}
}

8
vendor/github.com/d5/tengo/stdlib/source_modules.go generated vendored Normal file
View File

@ -0,0 +1,8 @@
// Code generated using gensrcmods.go; DO NOT EDIT.
package stdlib
// SourceModules are source type standard library modules.
var SourceModules = map[string]string{
"enum": "is_enumerable := func(x) {\n return is_array(x) || is_map(x) || is_immutable_array(x) || is_immutable_map(x)\n}\n\nis_array_like := func(x) {\n return is_array(x) || is_immutable_array(x)\n}\n\nexport {\n // all returns true if the given function `fn` evaluates to a truthy value on\n // all of the items in `x`. It returns undefined if `x` is not enumerable.\n all: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n for k, v in x {\n if !fn(k, v) { return false }\n }\n\n return true\n },\n // any returns true if the given function `fn` evaluates to a truthy value on\n // any of the items in `x`. It returns undefined if `x` is not enumerable.\n any: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n for k, v in x {\n if fn(k, v) { return true }\n }\n\n return false\n },\n // chunk returns an array of elements split into groups the length of size.\n // If `x` can't be split evenly, the final chunk will be the remaining elements.\n // It returns undefined if `x` is not array.\n chunk: func(x, size) {\n if !is_array_like(x) || !size { return undefined }\n\n numElements := len(x)\n if !numElements { return [] }\n\n res := []\n idx := 0\n for idx < numElements {\n res = append(res, x[idx:idx+size])\n idx += size\n }\n\n return res\n },\n // at returns an element at the given index (if `x` is array) or\n // key (if `x` is map). It returns undefined if `x` is not enumerable.\n at: func(x, key) {\n if !is_enumerable(x) { return undefined }\n\n if is_array_like(x) {\n if !is_int(key) { return undefined }\n } else {\n if !is_string(key) { return undefined }\n }\n\n return x[key]\n },\n // each iterates over elements of `x` and invokes `fn` for each element. `fn` is\n // invoked with two arguments: `key` and `value`. `key` is an int index\n // if `x` is array. `key` is a string key if `x` is map. It does not iterate\n // and returns undefined if `x` is not enumerable.\n each: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n for k, v in x {\n fn(k, v)\n }\n },\n // filter iterates over elements of `x`, returning an array of all elements `fn`\n // returns truthy for. `fn` is invoked with two arguments: `key` and `value`.\n // `key` is an int index if `x` is array. `key` is a string key if `x` is map.\n // It returns undefined if `x` is not enumerable.\n filter: func(x, fn) {\n if !is_array_like(x) { return undefined }\n\n dst := []\n for k, v in x {\n if fn(k, v) { dst = append(dst, v) }\n }\n\n return dst\n },\n // find iterates over elements of `x`, returning value of the first element `fn`\n // returns truthy for. `fn` is invoked with two arguments: `key` and `value`.\n // `key` is an int index if `x` is array. `key` is a string key if `x` is map.\n // It returns undefined if `x` is not enumerable.\n find: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n for k, v in x {\n if fn(k, v) { return v }\n }\n },\n // find_key iterates over elements of `x`, returning key or index of the first\n // element `fn` returns truthy for. `fn` is invoked with two arguments: `key`\n // and `value`. `key` is an int index if `x` is array. `key` is a string key if\n // `x` is map. It returns undefined if `x` is not enumerable.\n find_key: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n for k, v in x {\n if fn(k, v) { return k }\n }\n },\n // map creates an array of values by running each element in `x` through `fn`.\n // `fn` is invoked with two arguments: `key` and `value`. `key` is an int index\n // if `x` is array. `key` is a string key if `x` is map. It returns undefined\n // if `x` is not enumerable.\n map: func(x, fn) {\n if !is_enumerable(x) { return undefined }\n\n dst := []\n for k, v in x {\n dst = append(dst, fn(k, v))\n }\n\n return dst\n },\n // key returns the first argument.\n key: func(k, _) { return k },\n // value returns the second argument.\n value: func(_, v) { return v }\n}\n",
}

128
vendor/github.com/d5/tengo/stdlib/srcmod_enum.tengo generated vendored Normal file
View File

@ -0,0 +1,128 @@
is_enumerable := func(x) {
return is_array(x) || is_map(x) || is_immutable_array(x) || is_immutable_map(x)
}
is_array_like := func(x) {
return is_array(x) || is_immutable_array(x)
}
export {
// all returns true if the given function `fn` evaluates to a truthy value on
// all of the items in `x`. It returns undefined if `x` is not enumerable.
all: func(x, fn) {
if !is_enumerable(x) { return undefined }
for k, v in x {
if !fn(k, v) { return false }
}
return true
},
// any returns true if the given function `fn` evaluates to a truthy value on
// any of the items in `x`. It returns undefined if `x` is not enumerable.
any: func(x, fn) {
if !is_enumerable(x) { return undefined }
for k, v in x {
if fn(k, v) { return true }
}
return false
},
// chunk returns an array of elements split into groups the length of size.
// If `x` can't be split evenly, the final chunk will be the remaining elements.
// It returns undefined if `x` is not array.
chunk: func(x, size) {
if !is_array_like(x) || !size { return undefined }
numElements := len(x)
if !numElements { return [] }
res := []
idx := 0
for idx < numElements {
res = append(res, x[idx:idx+size])
idx += size
}
return res
},
// at returns an element at the given index (if `x` is array) or
// key (if `x` is map). It returns undefined if `x` is not enumerable.
at: func(x, key) {
if !is_enumerable(x) { return undefined }
if is_array_like(x) {
if !is_int(key) { return undefined }
} else {
if !is_string(key) { return undefined }
}
return x[key]
},
// each iterates over elements of `x` and invokes `fn` for each element. `fn` is
// invoked with two arguments: `key` and `value`. `key` is an int index
// if `x` is array. `key` is a string key if `x` is map. It does not iterate
// and returns undefined if `x` is not enumerable.
each: func(x, fn) {
if !is_enumerable(x) { return undefined }
for k, v in x {
fn(k, v)
}
},
// filter iterates over elements of `x`, returning an array of all elements `fn`
// returns truthy for. `fn` is invoked with two arguments: `key` and `value`.
// `key` is an int index if `x` is array. `key` is a string key if `x` is map.
// It returns undefined if `x` is not enumerable.
filter: func(x, fn) {
if !is_array_like(x) { return undefined }
dst := []
for k, v in x {
if fn(k, v) { dst = append(dst, v) }
}
return dst
},
// find iterates over elements of `x`, returning value of the first element `fn`
// returns truthy for. `fn` is invoked with two arguments: `key` and `value`.
// `key` is an int index if `x` is array. `key` is a string key if `x` is map.
// It returns undefined if `x` is not enumerable.
find: func(x, fn) {
if !is_enumerable(x) { return undefined }
for k, v in x {
if fn(k, v) { return v }
}
},
// find_key iterates over elements of `x`, returning key or index of the first
// element `fn` returns truthy for. `fn` is invoked with two arguments: `key`
// and `value`. `key` is an int index if `x` is array. `key` is a string key if
// `x` is map. It returns undefined if `x` is not enumerable.
find_key: func(x, fn) {
if !is_enumerable(x) { return undefined }
for k, v in x {
if fn(k, v) { return k }
}
},
// map creates an array of values by running each element in `x` through `fn`.
// `fn` is invoked with two arguments: `key` and `value`. `key` is an int index
// if `x` is array. `key` is a string key if `x` is map. It returns undefined
// if `x` is not enumerable.
map: func(x, fn) {
if !is_enumerable(x) { return undefined }
dst := []
for k, v in x {
dst = append(dst, fn(k, v))
}
return dst
},
// key returns the first argument.
key: func(k, _) { return k },
// value returns the second argument.
value: func(_, v) { return v }
}

34
vendor/github.com/d5/tengo/stdlib/stdlib.go generated vendored Normal file
View File

@ -0,0 +1,34 @@
package stdlib
//go:generate go run gensrcmods.go
import "github.com/d5/tengo/objects"
// AllModuleNames returns a list of all default module names.
func AllModuleNames() []string {
var names []string
for name := range BuiltinModules {
names = append(names, name)
}
for name := range SourceModules {
names = append(names, name)
}
return names
}
// GetModuleMap returns the module map that includes all modules
// for the given module names.
func GetModuleMap(names ...string) *objects.ModuleMap {
modules := objects.NewModuleMap()
for _, name := range names {
if mod := BuiltinModules[name]; mod != nil {
modules.AddBuiltinModule(name, mod)
}
if mod := SourceModules[name]; mod != "" {
modules.AddSourceModule(name, []byte(mod))
}
}
return modules
}

737
vendor/github.com/d5/tengo/stdlib/text.go generated vendored Normal file
View File

@ -0,0 +1,737 @@
package stdlib
import (
"fmt"
"regexp"
"strconv"
"strings"
"unicode/utf8"
"github.com/d5/tengo"
"github.com/d5/tengo/objects"
)
var textModule = map[string]objects.Object{
"re_match": &objects.UserFunction{Name: "re_match", Value: textREMatch}, // re_match(pattern, text) => bool/error
"re_find": &objects.UserFunction{Name: "re_find", Value: textREFind}, // re_find(pattern, text, count) => [[{text:,begin:,end:}]]/undefined
"re_replace": &objects.UserFunction{Name: "re_replace", Value: textREReplace}, // re_replace(pattern, text, repl) => string/error
"re_split": &objects.UserFunction{Name: "re_split", Value: textRESplit}, // re_split(pattern, text, count) => [string]/error
"re_compile": &objects.UserFunction{Name: "re_compile", Value: textRECompile}, // re_compile(pattern) => Regexp/error
"compare": &objects.UserFunction{Name: "compare", Value: FuncASSRI(strings.Compare)}, // compare(a, b) => int
"contains": &objects.UserFunction{Name: "contains", Value: FuncASSRB(strings.Contains)}, // contains(s, substr) => bool
"contains_any": &objects.UserFunction{Name: "contains_any", Value: FuncASSRB(strings.ContainsAny)}, // contains_any(s, chars) => bool
"count": &objects.UserFunction{Name: "count", Value: FuncASSRI(strings.Count)}, // count(s, substr) => int
"equal_fold": &objects.UserFunction{Name: "equal_fold", Value: FuncASSRB(strings.EqualFold)}, // "equal_fold(s, t) => bool
"fields": &objects.UserFunction{Name: "fields", Value: FuncASRSs(strings.Fields)}, // fields(s) => [string]
"has_prefix": &objects.UserFunction{Name: "has_prefix", Value: FuncASSRB(strings.HasPrefix)}, // has_prefix(s, prefix) => bool
"has_suffix": &objects.UserFunction{Name: "has_suffix", Value: FuncASSRB(strings.HasSuffix)}, // has_suffix(s, suffix) => bool
"index": &objects.UserFunction{Name: "index", Value: FuncASSRI(strings.Index)}, // index(s, substr) => int
"index_any": &objects.UserFunction{Name: "index_any", Value: FuncASSRI(strings.IndexAny)}, // index_any(s, chars) => int
"join": &objects.UserFunction{Name: "join", Value: textJoin}, // join(arr, sep) => string
"last_index": &objects.UserFunction{Name: "last_index", Value: FuncASSRI(strings.LastIndex)}, // last_index(s, substr) => int
"last_index_any": &objects.UserFunction{Name: "last_index_any", Value: FuncASSRI(strings.LastIndexAny)}, // last_index_any(s, chars) => int
"repeat": &objects.UserFunction{Name: "repeat", Value: textRepeat}, // repeat(s, count) => string
"replace": &objects.UserFunction{Name: "replace", Value: textReplace}, // replace(s, old, new, n) => string
"split": &objects.UserFunction{Name: "split", Value: FuncASSRSs(strings.Split)}, // split(s, sep) => [string]
"split_after": &objects.UserFunction{Name: "split_after", Value: FuncASSRSs(strings.SplitAfter)}, // split_after(s, sep) => [string]
"split_after_n": &objects.UserFunction{Name: "split_after_n", Value: FuncASSIRSs(strings.SplitAfterN)}, // split_after_n(s, sep, n) => [string]
"split_n": &objects.UserFunction{Name: "split_n", Value: FuncASSIRSs(strings.SplitN)}, // split_n(s, sep, n) => [string]
"title": &objects.UserFunction{Name: "title", Value: FuncASRS(strings.Title)}, // title(s) => string
"to_lower": &objects.UserFunction{Name: "to_lower", Value: FuncASRS(strings.ToLower)}, // to_lower(s) => string
"to_title": &objects.UserFunction{Name: "to_title", Value: FuncASRS(strings.ToTitle)}, // to_title(s) => string
"to_upper": &objects.UserFunction{Name: "to_upper", Value: FuncASRS(strings.ToUpper)}, // to_upper(s) => string
"trim_left": &objects.UserFunction{Name: "trim_left", Value: FuncASSRS(strings.TrimLeft)}, // trim_left(s, cutset) => string
"trim_prefix": &objects.UserFunction{Name: "trim_prefix", Value: FuncASSRS(strings.TrimPrefix)}, // trim_prefix(s, prefix) => string
"trim_right": &objects.UserFunction{Name: "trim_right", Value: FuncASSRS(strings.TrimRight)}, // trim_right(s, cutset) => string
"trim_space": &objects.UserFunction{Name: "trim_space", Value: FuncASRS(strings.TrimSpace)}, // trim_space(s) => string
"trim_suffix": &objects.UserFunction{Name: "trim_suffix", Value: FuncASSRS(strings.TrimSuffix)}, // trim_suffix(s, suffix) => string
"atoi": &objects.UserFunction{Name: "atoi", Value: FuncASRIE(strconv.Atoi)}, // atoi(str) => int/error
"format_bool": &objects.UserFunction{Name: "format_bool", Value: textFormatBool}, // format_bool(b) => string
"format_float": &objects.UserFunction{Name: "format_float", Value: textFormatFloat}, // format_float(f, fmt, prec, bits) => string
"format_int": &objects.UserFunction{Name: "format_int", Value: textFormatInt}, // format_int(i, base) => string
"itoa": &objects.UserFunction{Name: "itoa", Value: FuncAIRS(strconv.Itoa)}, // itoa(i) => string
"parse_bool": &objects.UserFunction{Name: "parse_bool", Value: textParseBool}, // parse_bool(str) => bool/error
"parse_float": &objects.UserFunction{Name: "parse_float", Value: textParseFloat}, // parse_float(str, bits) => float/error
"parse_int": &objects.UserFunction{Name: "parse_int", Value: textParseInt}, // parse_int(str, base, bits) => int/error
"quote": &objects.UserFunction{Name: "quote", Value: FuncASRS(strconv.Quote)}, // quote(str) => string
"unquote": &objects.UserFunction{Name: "unquote", Value: FuncASRSE(strconv.Unquote)}, // unquote(str) => string/error
}
func textREMatch(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
matched, err := regexp.MatchString(s1, s2)
if err != nil {
ret = wrapError(err)
return
}
if matched {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
}
func textREFind(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs != 2 && numArgs != 3 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
re, err := regexp.Compile(s1)
if err != nil {
ret = wrapError(err)
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
if numArgs < 3 {
m := re.FindStringSubmatchIndex(s2)
if m == nil {
ret = objects.UndefinedValue
return
}
arr := &objects.Array{}
for i := 0; i < len(m); i += 2 {
arr.Value = append(arr.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
"text": &objects.String{Value: s2[m[i]:m[i+1]]},
"begin": &objects.Int{Value: int64(m[i])},
"end": &objects.Int{Value: int64(m[i+1])},
}})
}
ret = &objects.Array{Value: []objects.Object{arr}}
return
}
i3, ok := objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
m := re.FindAllStringSubmatchIndex(s2, i3)
if m == nil {
ret = objects.UndefinedValue
return
}
arr := &objects.Array{}
for _, m := range m {
subMatch := &objects.Array{}
for i := 0; i < len(m); i += 2 {
subMatch.Value = append(subMatch.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
"text": &objects.String{Value: s2[m[i]:m[i+1]]},
"begin": &objects.Int{Value: int64(m[i])},
"end": &objects.Int{Value: int64(m[i+1])},
}})
}
arr.Value = append(arr.Value, subMatch)
}
ret = arr
return
}
func textREReplace(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 3 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
s3, ok := objects.ToString(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "string(compatible)",
Found: args[2].TypeName(),
}
return
}
re, err := regexp.Compile(s1)
if err != nil {
ret = wrapError(err)
} else {
s, ok := doTextRegexpReplace(re, s2, s3)
if !ok {
return nil, objects.ErrStringLimit
}
ret = &objects.String{Value: s}
}
return
}
func textRESplit(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs != 2 && numArgs != 3 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
var i3 = -1
if numArgs > 2 {
i3, ok = objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
}
re, err := regexp.Compile(s1)
if err != nil {
ret = wrapError(err)
return
}
arr := &objects.Array{}
for _, s := range re.Split(s2, i3) {
arr.Value = append(arr.Value, &objects.String{Value: s})
}
ret = arr
return
}
func textRECompile(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
re, err := regexp.Compile(s1)
if err != nil {
ret = wrapError(err)
} else {
ret = makeTextRegexp(re)
}
return
}
func textReplace(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 4 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
s3, ok := objects.ToString(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "string(compatible)",
Found: args[2].TypeName(),
}
return
}
i4, ok := objects.ToInt(args[3])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "fourth",
Expected: "int(compatible)",
Found: args[3].TypeName(),
}
return
}
s, ok := doTextReplace(s1, s2, s3, i4)
if !ok {
err = objects.ErrStringLimit
return
}
ret = &objects.String{Value: s}
return
}
func textRepeat(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
return nil, objects.ErrWrongNumArguments
}
s1, ok := objects.ToString(args[0])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
}
i2, ok := objects.ToInt(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
}
if len(s1)*i2 > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
return &objects.String{Value: strings.Repeat(s1, i2)}, nil
}
func textJoin(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
return nil, objects.ErrWrongNumArguments
}
var slen int
var ss1 []string
switch arg0 := args[0].(type) {
case *objects.Array:
for idx, a := range arg0.Value {
as, ok := objects.ToString(a)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: fmt.Sprintf("first[%d]", idx),
Expected: "string(compatible)",
Found: a.TypeName(),
}
}
slen += len(as)
ss1 = append(ss1, as)
}
case *objects.ImmutableArray:
for idx, a := range arg0.Value {
as, ok := objects.ToString(a)
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: fmt.Sprintf("first[%d]", idx),
Expected: "string(compatible)",
Found: a.TypeName(),
}
}
slen += len(as)
ss1 = append(ss1, as)
}
default:
return nil, objects.ErrInvalidArgumentType{
Name: "first",
Expected: "array",
Found: args[0].TypeName(),
}
}
s2, ok := objects.ToString(args[1])
if !ok {
return nil, objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
}
// make sure output length does not exceed the limit
if slen+len(s2)*(len(ss1)-1) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
return &objects.String{Value: strings.Join(ss1, s2)}, nil
}
func textFormatBool(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
b1, ok := args[0].(*objects.Bool)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "bool",
Found: args[0].TypeName(),
}
return
}
if b1 == objects.TrueValue {
ret = &objects.String{Value: "true"}
} else {
ret = &objects.String{Value: "false"}
}
return
}
func textFormatFloat(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 4 {
err = objects.ErrWrongNumArguments
return
}
f1, ok := args[0].(*objects.Float)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "float",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
i3, ok := objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
i4, ok := objects.ToInt(args[3])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "fourth",
Expected: "int(compatible)",
Found: args[3].TypeName(),
}
return
}
ret = &objects.String{Value: strconv.FormatFloat(f1.Value, s2[0], i3, i4)}
return
}
func textFormatInt(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := args[0].(*objects.Int)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
ret = &objects.String{Value: strconv.FormatInt(i1.Value, i2)}
return
}
func textParseBool(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := args[0].(*objects.String)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string",
Found: args[0].TypeName(),
}
return
}
parsed, err := strconv.ParseBool(s1.Value)
if err != nil {
ret = wrapError(err)
return
}
if parsed {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
}
func textParseFloat(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := args[0].(*objects.String)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
parsed, err := strconv.ParseFloat(s1.Value, i2)
if err != nil {
ret = wrapError(err)
return
}
ret = &objects.Float{Value: parsed}
return
}
func textParseInt(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 3 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := args[0].(*objects.String)
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
i3, ok := objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
parsed, err := strconv.ParseInt(s1.Value, i2, i3)
if err != nil {
ret = wrapError(err)
return
}
ret = &objects.Int{Value: parsed}
return
}
// Modified implementation of strings.Replace
// to limit the maximum length of output string.
func doTextReplace(s, old, new string, n int) (string, bool) {
if old == new || n == 0 {
return s, true // avoid allocation
}
// Compute number of replacements.
if m := strings.Count(s, old); m == 0 {
return s, true // avoid allocation
} else if n < 0 || m < n {
n = m
}
// Apply replacements to buffer.
t := make([]byte, len(s)+n*(len(new)-len(old)))
w := 0
start := 0
for i := 0; i < n; i++ {
j := start
if len(old) == 0 {
if i > 0 {
_, wid := utf8.DecodeRuneInString(s[start:])
j += wid
}
} else {
j += strings.Index(s[start:], old)
}
ssj := s[start:j]
if w+len(ssj)+len(new) > tengo.MaxStringLen {
return "", false
}
w += copy(t[w:], ssj)
w += copy(t[w:], new)
start = j + len(old)
}
ss := s[start:]
if w+len(ss) > tengo.MaxStringLen {
return "", false
}
w += copy(t[w:], ss)
return string(t[0:w]), true
}

228
vendor/github.com/d5/tengo/stdlib/text_regexp.go generated vendored Normal file
View File

@ -0,0 +1,228 @@
package stdlib
import (
"regexp"
"github.com/d5/tengo"
"github.com/d5/tengo/objects"
)
func makeTextRegexp(re *regexp.Regexp) *objects.ImmutableMap {
return &objects.ImmutableMap{
Value: map[string]objects.Object{
// match(text) => bool
"match": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
if re.MatchString(s1) {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
},
},
// find(text) => array(array({text:,begin:,end:}))/undefined
// find(text, maxCount) => array(array({text:,begin:,end:}))/undefined
"find": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs != 1 && numArgs != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
if numArgs == 1 {
m := re.FindStringSubmatchIndex(s1)
if m == nil {
ret = objects.UndefinedValue
return
}
arr := &objects.Array{}
for i := 0; i < len(m); i += 2 {
arr.Value = append(arr.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
"text": &objects.String{Value: s1[m[i]:m[i+1]]},
"begin": &objects.Int{Value: int64(m[i])},
"end": &objects.Int{Value: int64(m[i+1])},
}})
}
ret = &objects.Array{Value: []objects.Object{arr}}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
m := re.FindAllStringSubmatchIndex(s1, i2)
if m == nil {
ret = objects.UndefinedValue
return
}
arr := &objects.Array{}
for _, m := range m {
subMatch := &objects.Array{}
for i := 0; i < len(m); i += 2 {
subMatch.Value = append(subMatch.Value, &objects.ImmutableMap{Value: map[string]objects.Object{
"text": &objects.String{Value: s1[m[i]:m[i+1]]},
"begin": &objects.Int{Value: int64(m[i])},
"end": &objects.Int{Value: int64(m[i+1])},
}})
}
arr.Value = append(arr.Value, subMatch)
}
ret = arr
return
},
},
// replace(src, repl) => string
"replace": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
s, ok := doTextRegexpReplace(re, s1, s2)
if !ok {
return nil, objects.ErrStringLimit
}
ret = &objects.String{Value: s}
return
},
},
// split(text) => array(string)
// split(text, maxCount) => array(string)
"split": &objects.UserFunction{
Value: func(args ...objects.Object) (ret objects.Object, err error) {
numArgs := len(args)
if numArgs != 1 && numArgs != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
var i2 = -1
if numArgs > 1 {
i2, ok = objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
}
arr := &objects.Array{}
for _, s := range re.Split(s1, i2) {
arr.Value = append(arr.Value, &objects.String{Value: s})
}
ret = arr
return
},
},
},
}
}
// Size-limit checking implementation of regexp.ReplaceAllString.
func doTextRegexpReplace(re *regexp.Regexp, src, repl string) (string, bool) {
idx := 0
out := ""
for _, m := range re.FindAllStringSubmatchIndex(src, -1) {
var exp []byte
exp = re.ExpandString(exp, repl, src, m)
if len(out)+m[0]-idx+len(exp) > tengo.MaxStringLen {
return "", false
}
out += src[idx:m[0]] + string(exp)
idx = m[1]
}
if idx < len(src) {
if len(out)+len(src)-idx > tengo.MaxStringLen {
return "", false
}
out += src[idx:]
}
return string(out), true
}

989
vendor/github.com/d5/tengo/stdlib/times.go generated vendored Normal file
View File

@ -0,0 +1,989 @@
package stdlib
import (
"time"
"github.com/d5/tengo"
"github.com/d5/tengo/objects"
)
var timesModule = map[string]objects.Object{
"format_ansic": &objects.String{Value: time.ANSIC},
"format_unix_date": &objects.String{Value: time.UnixDate},
"format_ruby_date": &objects.String{Value: time.RubyDate},
"format_rfc822": &objects.String{Value: time.RFC822},
"format_rfc822z": &objects.String{Value: time.RFC822Z},
"format_rfc850": &objects.String{Value: time.RFC850},
"format_rfc1123": &objects.String{Value: time.RFC1123},
"format_rfc1123z": &objects.String{Value: time.RFC1123Z},
"format_rfc3339": &objects.String{Value: time.RFC3339},
"format_rfc3339_nano": &objects.String{Value: time.RFC3339Nano},
"format_kitchen": &objects.String{Value: time.Kitchen},
"format_stamp": &objects.String{Value: time.Stamp},
"format_stamp_milli": &objects.String{Value: time.StampMilli},
"format_stamp_micro": &objects.String{Value: time.StampMicro},
"format_stamp_nano": &objects.String{Value: time.StampNano},
"nanosecond": &objects.Int{Value: int64(time.Nanosecond)},
"microsecond": &objects.Int{Value: int64(time.Microsecond)},
"millisecond": &objects.Int{Value: int64(time.Millisecond)},
"second": &objects.Int{Value: int64(time.Second)},
"minute": &objects.Int{Value: int64(time.Minute)},
"hour": &objects.Int{Value: int64(time.Hour)},
"january": &objects.Int{Value: int64(time.January)},
"february": &objects.Int{Value: int64(time.February)},
"march": &objects.Int{Value: int64(time.March)},
"april": &objects.Int{Value: int64(time.April)},
"may": &objects.Int{Value: int64(time.May)},
"june": &objects.Int{Value: int64(time.June)},
"july": &objects.Int{Value: int64(time.July)},
"august": &objects.Int{Value: int64(time.August)},
"september": &objects.Int{Value: int64(time.September)},
"october": &objects.Int{Value: int64(time.October)},
"november": &objects.Int{Value: int64(time.November)},
"december": &objects.Int{Value: int64(time.December)},
"sleep": &objects.UserFunction{Name: "sleep", Value: timesSleep}, // sleep(int)
"parse_duration": &objects.UserFunction{Name: "parse_duration", Value: timesParseDuration}, // parse_duration(str) => int
"since": &objects.UserFunction{Name: "since", Value: timesSince}, // since(time) => int
"until": &objects.UserFunction{Name: "until", Value: timesUntil}, // until(time) => int
"duration_hours": &objects.UserFunction{Name: "duration_hours", Value: timesDurationHours}, // duration_hours(int) => float
"duration_minutes": &objects.UserFunction{Name: "duration_minutes", Value: timesDurationMinutes}, // duration_minutes(int) => float
"duration_nanoseconds": &objects.UserFunction{Name: "duration_nanoseconds", Value: timesDurationNanoseconds}, // duration_nanoseconds(int) => int
"duration_seconds": &objects.UserFunction{Name: "duration_seconds", Value: timesDurationSeconds}, // duration_seconds(int) => float
"duration_string": &objects.UserFunction{Name: "duration_string", Value: timesDurationString}, // duration_string(int) => string
"month_string": &objects.UserFunction{Name: "month_string", Value: timesMonthString}, // month_string(int) => string
"date": &objects.UserFunction{Name: "date", Value: timesDate}, // date(year, month, day, hour, min, sec, nsec) => time
"now": &objects.UserFunction{Name: "now", Value: timesNow}, // now() => time
"parse": &objects.UserFunction{Name: "parse", Value: timesParse}, // parse(format, str) => time
"unix": &objects.UserFunction{Name: "unix", Value: timesUnix}, // unix(sec, nsec) => time
"add": &objects.UserFunction{Name: "add", Value: timesAdd}, // add(time, int) => time
"add_date": &objects.UserFunction{Name: "add_date", Value: timesAddDate}, // add_date(time, years, months, days) => time
"sub": &objects.UserFunction{Name: "sub", Value: timesSub}, // sub(t time, u time) => int
"after": &objects.UserFunction{Name: "after", Value: timesAfter}, // after(t time, u time) => bool
"before": &objects.UserFunction{Name: "before", Value: timesBefore}, // before(t time, u time) => bool
"time_year": &objects.UserFunction{Name: "time_year", Value: timesTimeYear}, // time_year(time) => int
"time_month": &objects.UserFunction{Name: "time_month", Value: timesTimeMonth}, // time_month(time) => int
"time_day": &objects.UserFunction{Name: "time_day", Value: timesTimeDay}, // time_day(time) => int
"time_weekday": &objects.UserFunction{Name: "time_weekday", Value: timesTimeWeekday}, // time_weekday(time) => int
"time_hour": &objects.UserFunction{Name: "time_hour", Value: timesTimeHour}, // time_hour(time) => int
"time_minute": &objects.UserFunction{Name: "time_minute", Value: timesTimeMinute}, // time_minute(time) => int
"time_second": &objects.UserFunction{Name: "time_second", Value: timesTimeSecond}, // time_second(time) => int
"time_nanosecond": &objects.UserFunction{Name: "time_nanosecond", Value: timesTimeNanosecond}, // time_nanosecond(time) => int
"time_unix": &objects.UserFunction{Name: "time_unix", Value: timesTimeUnix}, // time_unix(time) => int
"time_unix_nano": &objects.UserFunction{Name: "time_unix_nano", Value: timesTimeUnixNano}, // time_unix_nano(time) => int
"time_format": &objects.UserFunction{Name: "time_format", Value: timesTimeFormat}, // time_format(time, format) => string
"time_location": &objects.UserFunction{Name: "time_location", Value: timesTimeLocation}, // time_location(time) => string
"time_string": &objects.UserFunction{Name: "time_string", Value: timesTimeString}, // time_string(time) => string
"is_zero": &objects.UserFunction{Name: "is_zero", Value: timesIsZero}, // is_zero(time) => bool
"to_local": &objects.UserFunction{Name: "to_local", Value: timesToLocal}, // to_local(time) => time
"to_utc": &objects.UserFunction{Name: "to_utc", Value: timesToUTC}, // to_utc(time) => time
}
func timesSleep(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
time.Sleep(time.Duration(i1))
ret = objects.UndefinedValue
return
}
func timesParseDuration(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
dur, err := time.ParseDuration(s1)
if err != nil {
ret = wrapError(err)
return
}
ret = &objects.Int{Value: int64(dur)}
return
}
func timesSince(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(time.Since(t1))}
return
}
func timesUntil(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(time.Until(t1))}
return
}
func timesDurationHours(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Float{Value: time.Duration(i1).Hours()}
return
}
func timesDurationMinutes(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Float{Value: time.Duration(i1).Minutes()}
return
}
func timesDurationNanoseconds(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: time.Duration(i1).Nanoseconds()}
return
}
func timesDurationSeconds(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Float{Value: time.Duration(i1).Seconds()}
return
}
func timesDurationString(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.String{Value: time.Duration(i1).String()}
return
}
func timesMonthString(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.String{Value: time.Month(i1).String()}
return
}
func timesDate(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 7 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
i3, ok := objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
i4, ok := objects.ToInt(args[3])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "fourth",
Expected: "int(compatible)",
Found: args[3].TypeName(),
}
return
}
i5, ok := objects.ToInt(args[4])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "fifth",
Expected: "int(compatible)",
Found: args[4].TypeName(),
}
return
}
i6, ok := objects.ToInt(args[5])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "sixth",
Expected: "int(compatible)",
Found: args[5].TypeName(),
}
return
}
i7, ok := objects.ToInt(args[6])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "seventh",
Expected: "int(compatible)",
Found: args[6].TypeName(),
}
return
}
ret = &objects.Time{Value: time.Date(i1, time.Month(i2), i3, i4, i5, i6, i7, time.Now().Location())}
return
}
func timesNow(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 0 {
err = objects.ErrWrongNumArguments
return
}
ret = &objects.Time{Value: time.Now()}
return
}
func timesParse(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
s1, ok := objects.ToString(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "string(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
parsed, err := time.Parse(s1, s2)
if err != nil {
ret = wrapError(err)
return
}
ret = &objects.Time{Value: parsed}
return
}
func timesUnix(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
i1, ok := objects.ToInt64(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "int(compatible)",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt64(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
ret = &objects.Time{Value: time.Unix(i1, i2)}
return
}
func timesAdd(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt64(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
ret = &objects.Time{Value: t1.Add(time.Duration(i2))}
return
}
func timesSub(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
t2, ok := objects.ToTime(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "time(compatible)",
Found: args[1].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Sub(t2))}
return
}
func timesAddDate(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 4 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
i2, ok := objects.ToInt(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "int(compatible)",
Found: args[1].TypeName(),
}
return
}
i3, ok := objects.ToInt(args[2])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "third",
Expected: "int(compatible)",
Found: args[2].TypeName(),
}
return
}
i4, ok := objects.ToInt(args[3])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "fourth",
Expected: "int(compatible)",
Found: args[3].TypeName(),
}
return
}
ret = &objects.Time{Value: t1.AddDate(i2, i3, i4)}
return
}
func timesAfter(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
t2, ok := objects.ToTime(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "time(compatible)",
Found: args[1].TypeName(),
}
return
}
if t1.After(t2) {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
}
func timesBefore(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
t2, ok := objects.ToTime(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
if t1.Before(t2) {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
}
func timesTimeYear(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Year())}
return
}
func timesTimeMonth(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Month())}
return
}
func timesTimeDay(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Day())}
return
}
func timesTimeWeekday(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Weekday())}
return
}
func timesTimeHour(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Hour())}
return
}
func timesTimeMinute(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Minute())}
return
}
func timesTimeSecond(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Second())}
return
}
func timesTimeNanosecond(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Nanosecond())}
return
}
func timesTimeUnix(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.Unix())}
return
}
func timesTimeUnixNano(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Int{Value: int64(t1.UnixNano())}
return
}
func timesTimeFormat(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 2 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
s2, ok := objects.ToString(args[1])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "second",
Expected: "string(compatible)",
Found: args[1].TypeName(),
}
return
}
s := t1.Format(s2)
if len(s) > tengo.MaxStringLen {
return nil, objects.ErrStringLimit
}
ret = &objects.String{Value: s}
return
}
func timesIsZero(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
if t1.IsZero() {
ret = objects.TrueValue
} else {
ret = objects.FalseValue
}
return
}
func timesToLocal(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Time{Value: t1.Local()}
return
}
func timesToUTC(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.Time{Value: t1.UTC()}
return
}
func timesTimeLocation(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.String{Value: t1.Location().String()}
return
}
func timesTimeString(args ...objects.Object) (ret objects.Object, err error) {
if len(args) != 1 {
err = objects.ErrWrongNumArguments
return
}
t1, ok := objects.ToTime(args[0])
if !ok {
err = objects.ErrInvalidArgumentType{
Name: "first",
Expected: "time(compatible)",
Found: args[0].TypeName(),
}
return
}
ret = &objects.String{Value: t1.String()}
return
}

4
vendor/modules.txt vendored
View File

@ -17,14 +17,16 @@ github.com/Philipp15b/go-steam/rwu
github.com/Philipp15b/go-steam/socialcache
# github.com/bwmarrin/discordgo v0.19.0
github.com/bwmarrin/discordgo
# github.com/d5/tengo v1.12.1
# github.com/d5/tengo v1.20.0
github.com/d5/tengo/script
github.com/d5/tengo/stdlib
github.com/d5/tengo/compiler
github.com/d5/tengo/compiler/parser
github.com/d5/tengo/compiler/source
github.com/d5/tengo/objects
github.com/d5/tengo/runtime
github.com/d5/tengo
github.com/d5/tengo/stdlib/json
github.com/d5/tengo/compiler/ast
github.com/d5/tengo/compiler/token
github.com/d5/tengo/compiler/scanner